CAMPANAC.Powered by public lands intelligenceMore Than Just Parks

U.S. Army Corps of Engineers · IL

South Marcum Campground

ReservableBookable through November 8, and from March 26 through April 16.

Book on recreation.govWe make nothing when you book

Right now: Taking bookingsSites offered on 24 of the next 24 nights read 16:16 UTC
A night: $18–$44Across the site types the agency prices
Sites: 160All of them booked ahead

Photos · USACE, Rend Lake Project Office

94 ftLongest rig

440 ftElevation

599 ftWater · an unnamed pond

1 miNW of Benton, IL

73%Tree cover

The place

the agency’s own description · what’s there · 5 notices

In the agency’s own words

South Marcum Campground is located on the south-eastern shore of Rend Lake— the perfect place to enjoy a wide variety of activities, events, and nature at its best. Rend Lake is made up of 20,633 acres of water and 19,523 acres of land. Whether you're looking for high adventure, a peaceful retreat, or something in between, you'll find it here in the heart of Southern Illinois. Keep reading

Recreation

South Marcum Campground is conveniently located near the South Marcum Day Use Area, which includes a boat ramp and a reservable picnic shelter. Within the campground, visitors can access the Rend Lake Bike Trail—over 20 miles of paved pathways that guide riders through scenic woodlands and across views of Rend Lake and the Big Muddy River. The area offers abundant opportunities for boating, hiking, fishing, hunting, swimming, and general outdoor exploration. Additional recreation features around Rend Lake include an archery complex with a 3D trail and elevated shooting platform, a dog park with a swimming feature, and two public swimming beaches (including the pet-friendly North Marcum Beach).

Facilities

South Marcum Campground offers 158 reservable campsites each equipped with a picnic table and a firepit. Electric hookups are provided at all sites, excluding tent sites. The campground offers a dump station, hot showers, flush toilets, and drinking water to provide a comfortable camping experience for guests. A playground is also conveniently located within the Whispering Pines camping loop near the shower house.

Natural Features

The fields, forests, and waters of Rend Lake provide a natural haven for wildlife and an outdoor wonderland for you. Woodland areas are made up of hickory, oak, and beautiful maples providing habitat to white-tail deer, turkeys, racoons, and many more native species. The shorelines are an excellent viewing area for waterfowl, shorebirds, and bank fishing the known crappie population.

Nearby Attractions

Rend Lake Spillway Recreation Area Rend Lake Project Office/ Visitor Center Rend Lake Bike Trail

Source: Recreation.gov data (RIDB), full extract · Aug 23, 2026

What the agency tells you

Rule

All campers MUST register/ check-in with gate attendant upon arrival to receive site and vehicle tags.

Rule

Camping equipment is required to be placed on the campsite; one camper with a maximum of three tents OR a maximum of four tents per site are permitted. Sites may NOT be reserved for parking of vehicles.

Rule

Reservations require a primary occupant to be 18 years of age or older and to be present on-site for the duration of the stay.

Everything else this campground posts · 2

Rule

See Park Information Guide for additional rules and regulations.

Rule

Don't Move Firewood: Protect your forests from tree-killing pests by buying your firewood locally and burning it on-site. Visit Dontmovefirewood.org for further information.

Read them on the agency’s own page →

Source: recreation.gov facility notices, quoted verbatim · Sep 9, 2026

Tents and rigs

Sites: 160 · 14 walk-in
Hookups: 146 electric, 51 water, 46 sewer
Longest rig: 94 ft
Paved pads: 146 of 160
Accessible sites: 6
Pets: Allowed
Campfires: Allowed, barring fire bans
Shade: Every site

Source: Recreation.gov campsite records · Aug 23, 2026

Facilities

Toilets: Flush Toilets; “…offers a dump station, hot showers, flush toilets, and drinking water to provide a comfortable…”
Showers: Yes, the record doesn’t say what kind; “The campground offers a dump station, hot showers, flush toilets, and drinking water to provide a comfortable camping experience for guests.”
Drinking water: Yes; WATER SPIGOT on 5 of 160 campsite records
Dump station: Yes; recreation.gov lists “Dump Station”
Boat ramp: Yes
Playground: Yes
Camp host: On site; recreation.gov lists “Host”
Stay limit: 14 nights; recreation.gov facility rule maxStay

Source: Stated in the agency description · Aug 23, 2026

Water, toilets and showers: counted from this campground’s own campsite records and read from the agency description, shown above · Sep 12, 2026

Around the campground

On the water: Lake, River, Beach; Biking; Birding; Boating; Fishing; Swimming; Water access
Night sky · 24th darkest of 30 in IL: Bortle 4

Source: Recreation.gov activity records · Aug 23, 2026

Night sky: VIIRS Day/Night Band annual cloud-free composite, VNL V2 2024 (Earth Observation Group, Colorado School of Mines), read at the published coordinate · Sep 8, 2026

21 of 258 site-nights open this Friday and Saturdayread 16:16 UTC

Every site here is reservable, and the record lists none held back for anyone who drives up.

OpenBooked

Booking windowThrough November 8Bookable now through November 8, 2026, the end of this reservable season, and again for March 26, 2027 through April 16, 2027. Tomorrow at 10 AM ET, availability opens through April 17, 2027.recreation.gov

Max stay14 nightsthe facility record

A night$18–$44plus $8 to reserve, once per bookingthe agency’s rate schedule

A weekend$44–$96DerivedFriday and Saturday, everything includedours, from the lines above

If plans change$10 to cancel$10 to change a reservationrecreation.gov’s schedule

Runs itU.S. Army Corps of EngineersBooked through recreation.govthe agency’s record

Watch for a cancellation

Full? Watch it.

One email when a night opens, plus More Than Just Parks dispatches. Unsubscribe any time.

We read recreation.gov once an hour, at 40 minutes past, and write the first time a site in your window is free for the nights you asked for.

Scanners that check every few minutes exist, and most of them charge. This one is free, it reads the same calendar, and it won’t always be first.

Free forever, no booking kickbacks.

Tell me when the season opens

Watch for the season to open

One email when the season goes on sale, plus More Than Just Parks dispatches. Unsubscribe any time.

We check once an hour, at 40 minutes past, and write the first time the agency has that season on sale.

Scanners that check every few minutes exist, and most of them charge. This one is free, it reads the same calendar, and it won’t always be first.

Free forever, no booking kickbacks.

Book on recreation.gov

We make nothing when you book. The link goes straight to the government.

Every line of the receipt · 19

What you actually pay

The sign priceU.S. Army Corps of Engineers

A night, per site$18–$44

electric$18

Standard Electric$18

Electric and Water$22

Full Hook-up (Water, Sewer, & Electric)$26

Full Hook-up (Water, Sewer, &Electric)$26

Covey Point Buddy Site$44

Whispering Pines Buddy Site$44

The agency has already scheduled a change from Jan 1, 2027: $20 to $28 a night.

Rates for the season the campground is in now, Mar 27, 2026 to Nov 8, 2026.

The booking feerecreation.gov

Reservation fee, booked online$8

One fee per reservation, however many nights you book, and it’s non-refundable. $9 if you book by phone, $3 in person.

Pass discounts only apply to the recreation (or use) fee for the facility. Other charges such as electricity or water hookups, reservation or other fees are not eligible for a discount.

What a stay costs

One nightDerived$26–$52

A weekend, Friday and SaturdayDerived$44–$96

Derived by CAMPANAC: the agency’s published rates for this season, $18–$44 a night, plus one $8 recreation.gov reservation fee for the booking. A weekend here means Friday and Saturday night, booked once. Optional charges (an extra vehicle, a second tent, a dump-station fee) are listed separately and aren’t in this total.

If your plans changerecreation.gov

Change fee, moving to dates outside your booking$10

Cancellation fee$10

Cancelling the day before, or the day of$10 + your first night

No-show$20 + your first night

Who keeps the booking fee

The agency’s own policy text says the reservation fee and the cancellation processing fee are “retained by the reservation service contractor”, and that a campground concessionaire will decline to refund them because “they did not receive these fees”. Recreation.gov is run under contract by Booz Allen Hamilton. What share of your booking fee the contractor keeps isn’t published in any federal dataset we can read, so we print no number for it. Our reporting on the contract →

How we know this receipt · 5

Sign price: recreation.gov facility rate schedule, quoted as the agency publishes it · Sep 10, 2026

Booking fee, change fee, cancellation fee, no-show: Rules and Reservation Policies, Recreation.gov, the published fee schedule, curated by hand into lib/reservation-fee-schedule.json (9 rows, each carrying its own verbatim sentence). The publisher states these policies were last updated September 2019. · Sep 9, 2026

The two totals: Derived by CAMPANAC by adding the agency’s own published nightly rate to recreation.gov’s own published reservation fee. Both components are cited above; the addition is ours and is shown only where every component is known. · Sep 9, 2026

Who keeps the booking fee: Recreation.gov facility policy text, Dead Swede Campground (facility 234221) · Not on the national policy page. This is agency policy text recreation.gov publishes on individual campground pages; this site holds it verbatim on 45 active campgrounds (campground_rules.cancellation_description, scripts/load-facility-rules.mjs). · Sep 9, 2026

The contract: Reservation Gods: Who Stole Our Campsites and Sold Them Back to Us, More Than Just Parks, April 2025 · Apr 1, 2025

Source: Recreation.gov data (RIDB), full extract · Aug 23, 2026

recreation.gov availability, read 16:16 UTC · rules read Sep 9, 2026 · rates Sep 10, 2026 · How we know all this

Seen something wrong here? Tell us.

The sites

160 sites · which ones have room · the site map

The sites, ranked

from 160 mapped sites

100 ftbetween you and the next site, typically

Most roomLoop OROO 012 164 ftLoop WPIN 139 160 ftLoop CPOI 065 155 ftLoop CPOI 066 155 ftLoop BRID 059 142 ft

Least roomLoop OROO 008 61 ftLoop OROO 009 61 ftLoop OROO 013 62 ft

Source: Derived by CAMPANAC from recreation.gov per-site coordinates (nearest-neighbor distance) · Oct 12, 2026

All 160 sites

160 of 160 sites located

RV / electric146Walk, hike or boat in14

019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 065 066 067 068 069 070 071 072 073 074 075 076 077 078 079 080 081 082 083 084 085 086 087 088 089 090 091 092 093 094 095 096 097 098 099 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 T-01 T-02 T-03 T-04 T-05 T-06 T-07 T-08 T-09 T-10 T-11 T-12 T-13 T-14

Aerial · Esri World Imagery

Sites: recreation.gov (RIDB), coordinates as published · Aug 23, 2026

Imagery: Esri World Imagery

SleepsTakes aUp to

Toilet distances are OpenStreetMap’s, measured for 160 of the 160 sites listed. A site with no reading is unknown, never far.

The price is derived by CAMPANAC, not published per site: the per-night rate this campground publishes for each site’s own site type. 160 of the 160 sites listed carry one, and a site whose type has no published rate sits out of the price rather than being called free.

Measured shade is NLCD Tree Canopy Cover 2024 (USDA Forest Service / MRLC) read at the site’s own coordinate, 27% canopy or more, and only for the sites the agency gave no Shade value. It never changes the agency’s own shaded count beside it.


BLOD	019	standard electric	64 ft	50/30 amp		88 ft	483 ft	43 ft	$18–$44
BLOD	020	standard electric	63 ft	50/30 amp		84 ft	510 ft	123 ft	$18–$44
BLOD	021	standard electric	74 ft	50/30 amp		84 ft	588 ft	160 ft	$18–$44
BLOD	022	standard electric	68 ft	50/30 amp		116 ft	594 ft	148 ft	$18–$44
BLOD	023	standard electric	52 ft	50/30 amp		99 ft	657 ftMine Number 21 Reservoir	269 ft	$18–$44
BLOD	024	standard electric	93 ft	50/30 amp		99 ft	683 ftMine Number 21 Reservoir	337 ft	$18–$44
BLOD	025	standard electric	70 ft	50/30 amp		102 ft	556 ftMine Number 21 Reservoir	186 ft	$18–$44
BLOD	026	standard electric	40 ft	50/30 amp		115 ft	549 ftMine Number 21 Reservoir	267 ft	$18–$44
BLOD	027	standard electric	78 ft	50/30 amp		116 ft	436 ftMine Number 21 Reservoir	264 ft	$18–$44
BLOD	028	standard electric	61 ft	50/30 amp		87 ft	379 ftMine Number 21 Reservoir	162 ft	$18–$44
BLOD	029	standard electric	91 ft	50/30 amp		110 ft	236 ftMine Number 21 Reservoir	314 ft	$18–$44
BLOD	030	standard electric	52 ft	50/30 amp		87 ft	300 ftMine Number 21 Reservoir	153 ft	$18–$44
BLOD	031	standard electric	83 ft	50/30 amp		109 ft	202 ftMine Number 21 Reservoir	271 ft	$18–$44
BLOD	032	standard electric	65 ft	50/30 amp		87 ft	272 ftMine Number 21 Reservoir	176 ft	$18–$44
BLOD	033	standard electric	58 ft	50/30 amp		109 ft	172 ftMine Number 21 Reservoir	241 ft	$18–$44
BLOD	034	standard electric	87 ft	50/30 amp		105 ft	167 ftMine Number 21 Reservoir	260 ft	$18–$44
BLOD	035	standard electric	94 ft	50/30 amp		87 ft	319 ftMine Number 21 Reservoir	217 ft	$18–$44
BLOD	036	standard electric	62 ft	50/30 amp		66 ft	356 ftMine Number 21 Reservoir	269 ft	$18–$44
BLOD	037	standard electric	75 ft	50/30 amp		81 ft	300 ftMine Number 21 Reservoir	346 ft	$18–$44
BLOD	038	standard electric	64 ft	50/30 amp		66 ft	413 ftMine Number 21 Reservoir	282 ft	$18–$44
BLOD	039	standard electric	79 ft	50/30 amp		112 ft	335 ftMine Number 21 Reservoir	394 ft	$18–$44
BLOD	040	standard electric	63 ft	50/30 amp		78 ft	431 ftMine Number 21 Reservoir	344 ft	$18–$44
BLOD	041	standard electric	58 ft	50/30 amp		77 ft	469 ftMine Number 21 Reservoir	272 ft	$18–$44
BLOD	042	standard electric	73 ft	50/30 amp		100 ft	551 ftMine Number 21 Reservoir	217 ft	$18–$44
BLOD	043	standard electric	59 ft	50/30 amp		115 ft	592 ft	278 ft	$18–$44
BLOD	044	standard electric	62 ft	50/30 amp		131 ft	463 ft	352 ft	$18–$44
BLOD	045	standard electric	46 ft	50/30 amp	yes	131 ft	332 ft	312 ft	$18–$44
BLOD	046	standard electric	53 ft	50/30 amp		90 ft	479 ft	232 ft	$18–$44
BLOD	047	standard electric	66 ft	50/30 amp		90 ft	406 ft	167 ft	$18–$44
BLOD	048	standard electric	57 ft	50/30 amp		116 ft	366 ft	90 ft	$18–$44
BRID	049	standard electric	55 ft	50/30 amp	yes	91 ft	178 ft	242 ft	$18–$44
BRID	050	standard electric	40 ft	50/30 amp		91 ft	190 ft	223 ft	$18–$44
BRID	051	standard electric	67 ft	50/30 amp		117 ft	308 ft	168 ft	$18–$44
BRID	052	standard electric	36 ft	50/30 amp		117 ft	424 ft	148 ft	$18–$44
BRID	053	standard electric	41 ft	50/30 amp		73 ft	293 ftMine Number 21 Reservoir	240 ft	$18–$44
BRID	054	standard electric	42 ft	50/30 amp		73 ft	225 ftMine Number 21 Reservoir	307 ft	$18–$44
BRID	055	standard electric	69 ft	50/30 amp		92 ft	127 ftMine Number 21 Reservoir	437 ft	$18–$44
BRID	056	standard electric	71 ft	50/30 amp		92 ft	94 ftMine Number 21 Reservoir	501 ft	$18–$44
BRID	057	standard electric	42 ft	50/30 amp		109 ft	66 ftMine Number 21 Reservoir	518 ft	$18–$44
BRID	058	standard electric	57 ft	50/30 amp		109 ft	88 ftMine Number 21 Reservoir	479 ft	$18–$44
BRID	059	standard electric	51 ft	50/30 amp	yes	142 ft	189 ftMine Number 21 Reservoir	348 ft	$18–$44
BRID	060	standard electric	74 ft	50/30 amp		112 ft	294 ftMine Number 21 Reservoir	150 ft	$18–$44
BRID	061	standard electric	64 ft	50/30 amp		99 ft	336 ftMine Number 21 Reservoir	126 ft	$18–$44
BRID	062	standard electric	69 ft	50/30 amp		89 ft	397 ft	147 ft	$18–$44
BRID	063	standard electric	57 ft	50/30 amp		89 ft	321 ft	198 ft	$18–$44
CPOI	065	standard electric	72 ft	50/30 amp	yes	155 ft	331 ft	398 ft	$18–$44
CPOI	066	standard electric	44 ft	50/30 amp	yes	155 ft	242 ft	446 ft	$18–$44
CPOI	067	standard electric	65 ft	50/30 amp		95 ft	408 ft	449 ft	$18–$44
CPOI	068	standard electric	50 ft	50/30 amp		118 ft	343 ft	314 ft	$18–$44
CPOI	069	standard electric	72 ft	50/30 amp		95 ft	473 ft	424 ft	$18–$44
CPOI	070	standard electric	83 ft	50/30 amp		103 ft	470 ftMine Number 21 Reservoir	327 ft	$18–$44
CPOI	071	standard electric	79 ft	50/30 amp		102 ft	313 ftMine Number 21 Reservoir	276 ft	$18–$44
CPOI	072	standard electric	76 ft	50/30 amp		119 ft	381 ftMine Number 21 Reservoir	176 ft	$18–$44
CPOI	073	standard electric	70 ft	50/30 amp		86 ft	260 ftMine Number 21 Reservoir	191 ft	$18–$44
CPOI	074	standard electric	67 ft	50/30 amp		108 ft	340 ftMine Number 21 Reservoir	58 ft	$18–$44
CPOI	075	standard electric	89 ft	50/30 amp		86 ft	238 ftMine Number 21 Reservoir	134 ft	$18–$44
CPOI	076	standard electric	66 ft	50/30 amp		87 ft	209 ftMine Number 21 Reservoir	130 ft	$18–$44
CPOI	077	standard electric	73 ft	50/30 amp		95 ft	293 ftMine Number 21 Reservoir	131 ft	$18–$44
CPOI	078	standard electric	65 ft	50/30 amp		87 ft	195 ftMine Number 21 Reservoir	189 ft	$18–$44
CPOI	079	standard electric	89 ft	50/30 amp		93 ft	172 ftMine Number 21 Reservoir	275 ft	$18–$44
CPOI	080	standard electric	61 ft	50/30 amp		77 ft	135 ftMine Number 21 Reservoir	326 ft	$18–$44
CPOI	081	standard electric	81 ft	50/30 amp		95 ft	223 ftMine Number 21 Reservoir	224 ft	$18–$44
CPOI	082	standard electric	42 ft	50/30 amp		77 ft	96 ftMine Number 21 Reservoir	352 ft	$18–$44
CPOI	083	standard electric	70 ft	50/30 amp		119 ft	86 ftMine Number 21 Reservoir	275 ft	$18–$44
CPOI	084	standard electric	67 ft	50/30 amp		106 ft	117 ftMine Number 21 Reservoir	169 ft	$18–$44
CPOI	085	standard electric	63 ft	50/30 amp		111 ft	124 ftMine Number 21 Reservoir	94 ft	$18–$44
CPOI	086	standard electric	46 ft	50/30 amp		111 ft	81 ftMine Number 21 Reservoir	191 ft	$18–$44
CPOI	087	standard electric	49 ft	50/30 amp		114 ft	150 ftMine Number 21 Reservoir	173 ft	$18–$44
CPOI	088	standard electric	38 ft	50/30 amp		91 ft	231 ftMine Number 21 Reservoir	99 ft	$18–$44
CPOI	089	standard electric	40 ft	50/30 amp		63 ft	232 ftMine Number 21 Reservoir	112 ft	$18–$44
CPOI	090	standard electric	39 ft	50/30 amp		63 ft	212 ftMine Number 21 Reservoir	158 ft	$18–$44
CPOI	091	standard electric	40 ft	50/30 amp		67 ft	205 ftMine Number 21 Reservoir	225 ft	$18–$44
CPOI	092	standard electric	77 ft	50/30 amp		105 ft	239 ftMine Number 21 Reservoir	268 ft	$18–$44
CPOI	093	standard electric	77 ft	50/30 amp		105 ft	343 ftMine Number 21 Reservoir	201 ft	$18–$44
CPOI	094	standard electric	59 ft	50/30 amp		84 ft	415 ftMine Number 21 Reservoir	275 ft	$18–$44
CPOI	095	standard electric	84 ft	50/30 amp		101 ft	516 ftMine Number 21 Reservoir	179 ft	$18–$44
CPOI	096	standard electric	85 ft	50/30 amp		84 ft	395 ftMine Number 21 Reservoir	294 ft	$18–$44
CPOI	097	standard electric	76 ft	50/30 amp		101 ft	507 ftMine Number 21 Reservoir	251 ft	$18–$44
CPOI	098	standard electric	93 ft	50/30 amp		104 ft	425 ftMine Number 21 Reservoir	351 ft	$18–$44
CPOI	099	standard electric	93 ft	50/30 amp		109 ft	558 ftMine Number 21 Reservoir	333 ft	$18–$44
CPOI	100	standard electric	53 ft	50/30 amp		104 ft	476 ftMine Number 21 Reservoir	418 ft	$18–$44
CPOI	101	standard electric	55 ft	50/30 amp		106 ft	591 ft	303 ft	$18–$44
CPOI	102	standard electric	71 ft	50/30 amp		104 ft	657 ftMine Number 21 Reservoir	27 ft	$18–$44
CPOI	103	rv electric	60 ft	50/30 amp		66 ft	628 ft	198 ft	$18–$26
CPOI	104	rv electric	50 ft	50/30 amp		129 ft	481 ftMine Number 21 Reservoir	236 ft	$18–$26
CPOI	105	rv electric	45 ft	50/30 amp		66 ft	598 ftMine Number 21 Reservoir	158 ft	$18–$26
CPOI	106	rv electric	63 ft	50/30 amp		99 ft	356 ftMine Number 21 Reservoir	292 ft	$18–$26
CPOI	107	standard electric	76 ft	50/30 amp		124 ft	237 ftMine Number 21 Reservoir	253 ft	$18–$44
CPOI	108	standard electric	38 ft	50/30 amp		111 ft	135 ftMine Number 21 Reservoir	162 ft	$18–$44
CPOI	109	standard electric	74 ft	50/30 amp		111 ft	193 ftMine Number 21 Reservoir	62 ft	$18–$44
CPOI	110	standard electric	37 ft	50/30 amp		100 ft	109 ftMine Number 21 Reservoir	182 ft	$18–$44
CPOI	111	standard electric	42 ft	50/30 amp		100 ft	125 ftMine Number 21 Reservoir	243 ft	$18–$44
CPOI	112	standard electric	50 ft	50/30 amp		85 ft	82 ftMine Number 21 Reservoir	290 ft	$18–$44
CPOI	113	standard electric	69 ft	50/30 amp		62 ft	164 ftMine Number 21 Reservoir	206 ft	$18–$44
CPOI	114	standard electric	51 ft	50/30 amp		62 ft	176 ftMine Number 21 Reservoir	235 ft	$18–$44
CPOI	115	standard electric	39 ft	50/30 amp		105 ft	221 ftMine Number 21 Reservoir	205 ft	$18–$44
CPOI	116	standard electric	72 ft	50/30 amp		95 ft	256 ftMine Number 21 Reservoir	114 ft	$18–$44
CPOI	117	standard electric	66 ft	50/30 amp		109 ft	270 ftMine Number 21 Reservoir	89 ft	$18–$44
CPOI	118	standard electric	65 ft	50/30 amp		92 ft	295 ftMine Number 21 Reservoir	118 ft	$18–$44
CPOI	119	standard electric	69 ft	50/30 amp		92 ft	303 ftMine Number 21 Reservoir	124 ft	$18–$44
CPOI	120	standard electric	66 ft	50/30 amp		106 ft	276 ftMine Number 21 Reservoir	213 ft	$18–$44
CPOI	121	standard electric	73 ft	50/30 amp		99 ft	372 ftMine Number 21 Reservoir	237 ft	$18–$44
CPOI	122	standard electric	67 ft	50/30 amp		107 ft	384 ftMine Number 21 Reservoir	329 ft	$18–$44
CPOI	123	standard electric	39 ft	50/30 amp		107 ft	278 ftMine Number 21 Reservoir	321 ft	$18–$44
CPOI	124	standard electric	52 ft	50/30 amp		84 ft	343 ftMine Number 21 Reservoir	304 ft	$18–$44
CPOI	125	standard electric	73 ft	50/30 amp		84 ft	424 ftMine Number 21 Reservoir	230 ft	$18–$44
CPOI	126	standard electric	74 ft	50/30 amp		104 ft	628 ft	85 ft	$18–$44
CPOI	127	standard electric	82 ft	50/30 amp		108 ft	662 ft	176 ft	$18–$44
CPOI	128	standard electric	60 ft	50/30 amp		117 ft	469 ft	212 ft	$18–$44
CPOI	129	standard electric	60 ft	50/30 amp		117 ft	525 ft	184 ft	$18–$44
OROO	001	standard electric	75 ft	50/30 amp	yes	94 ft	569 ft	88 ft	$18–$44
OROO	002	standard electric	75 ft	50/30 amp		121 ft	538 ft	241 ft	$18–$44
OROO	003	standard electric	69 ft	50/30 amp		94 ft	653 ft	312 ft	$18–$44
OROO	004	standard electric	71 ft	50/30 amp		93 ft	720 ft	296 ft	$18–$44
OROO	005	standard electric	62 ft	50/30 amp		93 ft	645 ft	207 ft	$18–$44
OROO	006	standard electric	66 ft	50/30 amp		82 ft	803 ft	281 ft	$18–$44
OROO	007	standard electric	74 ft	50/30 amp		77 ft	798 ft	242 ft	$18–$44
OROO	008	standard electric	70 ft	50/30 amp		61 ft	762 ft	191 ft	$18–$44
OROO	009	standard electric	67 ft	50/30 amp		61 ft	746 ft	172 ft	$18–$44
OROO	010	standard electric	70 ft	50/30 amp		75 ft	722 ft	168 ft	$18–$44
OROO	011	standard electric	76 ft	50/30 amp		76 ft	706 ft	197 ft	$18–$44
OROO	012	standard electric	56 ft	50/30 amp		164 ft	658 ft	306 ft	$18–$44
OROO	013	standard electric	65 ft	50/30 amp		62 ft	490 ft	184 ft	$18–$44
OROO	014	standard electric	30 ft	50/30 amp		112 ft	495 ft	294 ft	$18–$44
OROO	015	standard electric	58 ft	50/30 amp		103 ft	397 ft	264 ft	$18–$44
OROO	016	standard electric	64 ft	50/30 amp		62 ft	502 ft	124 ft	$18–$44
OROO	017	standard electric	69 ft	50/30 amp		106 ft	398 ft	189 ft	$18–$44
OROO	018	standard electric	71 ft	50/30 amp		94 ft	528 ft	47 ft	$18–$44
WPIN	130	standard electric	65 ft	50/30 amp		72 ft	316 ft	629 ft	$18–$44
WPIN	131	standard electric	68 ft	50/30 amp		80 ft	220 ft	628 ft	$18–$44
WPIN	132	standard electric	83 ft	50/30 amp		63 ft	217 ft	562 ft	$18–$44
WPIN	133	standard electric	83 ft	50/30 amp		63 ft	269 ft	499 ft	$18–$44
WPIN	134	standard electric	54 ft	50/30 amp		63 ft	296 ft	566 ft	$18–$44
WPIN	135	rv electric	69 ft	50/30 amp		97 ft	366 ft	451 ft	$18–$26
WPIN	136	standard electric	63 ft	50/30 amp		63 ft	359 ft	541 ft	$18–$44
WPIN	137	rv electric	61 ft	50/30 amp		93 ft	445 ft	484 ft	$18–$26
WPIN	138	standard electric	32 ft	50/30 amp		111 ft	445 ft	599 ft	$18–$44
WPIN	139	standard electric	67 ft	50/30 amp		161 ft	602 ft	588 ft	$18–$44
WPIN	140	standard electric	69 ft	50/30 amp		127 ft	586 ft	765 ft	$18–$44
WPIN	141	standard electric	63 ft	50/30 amp		129 ft	711 ft	940 ft	$18–$44
WPIN	142	standard electric	60 ft	50/30 amp		87 ft	610 ft	950 ft	$18–$44
WPIN	143	standard electric	61 ft	50/30 amp		87 ft	584 ft	910 ft	$18–$44
WPIN	144	standard electric	57 ft	50/30 amp		107 ft	484 ft	871 ft	$18–$44
WPIN	145	standard electric	63 ft	50/30 amp		105 ft	498 ft	827 ft	$18–$44
WPIN	146	standard electric	66 ft	50/30 amp		108 ft	391 ft	825 ft	$18–$44
WPIN	147	standard electric	68 ft	50/30 amp		84 ft	377 ft	687 ft	$18–$44
WTES	T-01	walk to				104 ft	63 ftMine Number 21 Reservoir	298 ft	$16
WTES	T-02	walk to				88 ft	91 ftMine Number 21 Reservoir	394 ft	$16
WTES	T-03	walk to				88 ft	58 ftMine Number 21 Reservoir	357 ft	$16
WTES	T-04	walk to				122 ft	107 ftMine Number 21 Reservoir	469 ft	$16
WTES	T-05	walk to				122 ft	182 ftMine Number 21 Reservoir	452 ft	$16
WTES	T-06	walk to				105 ft	92 ftMine Number 21 Reservoir	596 ft	$16
WTES	T-07	walk to				138 ft	144 ftMine Number 21 Reservoir	647 ft	$16
WTES	T-08	walk to				102 ft	72 ftMine Number 21 Reservoir	697 ft	$16
WTES	T-09	walk to				102 ft	59 ftMine Number 21 Reservoir	788 ft	$16
WTES	T-10	walk to				129 ft	140 ftMine Number 21 Reservoir	784 ft	$16
WTES	T-11	walk to				102 ft	66 ftMine Number 21 Reservoir	919 ft	$16
WTES	T-12	walk to				102 ft	137 ftMine Number 21 Reservoir	910 ft	$16
WTES	T-13	walk to				114 ft	90 ftMine Number 21 Reservoir	878 ft	$16
WTES	T-14	walk to				114 ft	88 ftMine Number 21 Reservoir	820 ft	$16

Price: Derived by CAMPANAC: each site takes the per-night rate this campground publishes for the site’s own site type (recreation.gov rate schedule). recreation.gov publishes no per-campsite fee, and a site whose type carries no published rate is left blank rather than called free · Sep 11, 2026

25 of 160 listed

Source: Recreation.gov data (RIDB), full extract · Aug 23, 2026

Getting there

the map and the coordinate · the agency’s directions · the phone number

Coordinate38.03384, -88.94016

The mapSee it on the map

The driveDirections ↗

The phone618-724-2493

The agency’s pageOfficial page ↗

Where it is

Also near here

Dale Miller Youth0.2 mi

Spillway Group Area0.8 mi

Gun Creek3.1 mi

South Sandusky Campground3.5 mi

Shagbark Group Area3.5 mi

North Sandusky Campground4.4 mi

Getting there

From I-57 take exit 71 and turn west onto Highway 14. After 3 miles turn right on Rend City Road, then right on Rend Lake Dam Rd. Continue 3 miles to the park entrance on the left.

Directions: Driving directions as the agency wrote them · Sep 9, 2026

Source: Recreation.gov data (RIDB), full extract · Aug 23, 2026

The weather

the next four days · the thirty-year normal

Next four days, and the thirty-year normal

Forecast

Tonight41°Partly Cloudy7% rain

Saturday61°Sunny

Saturday Night35°Clear

Sunday67°Areas Of Frost then Sunny

NWS forecast for Benton, IL

Source: National Weather Service, PAH forecast office · Oct 16, 2026

Typical weather

Typical October night 46°F, day 69°F.

Coldest month of the year: typical January night 24°F, below freezing. Bring a bag rated colder than that, and expect ice in the water bottle.

100°32°10°

Daily high and lowDays with 0.10 in or more

A normal is the 1991-2020 average for the month, not a forecast: about half of all Julys are colder than the July line. The seven-day forecast above answers the other question.

Measured at: DU QUOIN 4 SE, IL (USC00112483), 14 miles away and at about the same elevation

Source: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020, monthly normals · Sep 8, 2026

The land, and who answers for it

who answers for it

Who answers for this land

South Marcum Campground is in Illinois’s 12th congressional district. Its representative, Mike Bost (R), votes on the laws that decide what happens to this land. Public-lands grade so far: F. See every public-lands vote →

Seen something wrong here? Tell us.

Source: U.S. Census district boundaries and the MTJP Congressional Public Lands Score

How we know

every fact on this page, and where it came from

Right now: recreation.gov is offering sites on 24 of the next 24 nights, which isn’t something a closed campground does.

Sites on recreation.gov: recreation.gov’s own month availability payload for this facility, asked for October 2026 and November 2026. It names 160 of the 160 campsites the agency files here, and every one of them carries an answer either way. A campground nobody has read carries no answer at all, never a no. · Oct 14, 2026

Elevation: USGS 3DEP elevation point query at this campground’s coordinate · Sep 7, 2026

Tree cover: NLCD Tree Canopy Cover 2024 (USDA Forest Service / MRLC), one 30 m cell at this coordinate, taken as the median across the 160 campsites here that carry a reading · Sep 9, 2026

Water: USGS National Hydrography Dataset, nearest perennial lake, reservoir, river or stream to this campground’s coordinate · Sep 8, 2026

Night sky: VIIRS Day/Night Band annual cloud-free composite, VNL V2 2024 (Earth Observation Group, Colorado School of Mines), read at the published coordinate: 0.97 mcd/m² of artificial all-sky glow, ranked against the 30 rated federal campgrounds in Illinois · Sep 8, 2026

Sky-glow model: Duriscoe, Anderson, Luginbuhl and Baugh (2018), a simplified model of all-sky artificial sky glow derived from VIIRS Day/Night band data, the National Park Service sky-glow model

Cell signal: the Army Corps’s own campground description, read as text by CAMPANAC. None of this is a measurement. It’s what the land manager published about the place, and phones, carriers and weather all disagree with each other; treat it as a warning, not a promise.

Nearest town: U.S. Census Bureau TIGER/Line 2024 places, measured by CAMPANAC to the town boundary; population is the ACS 2020-2024 5-year estimate · Sep 9, 2026