U.S. Forest Service · Whiskeytown Shasta-Trinity National Recreation Area · CA

Mariners Roost Boat-In Campground

1Heads up1 fire 38 mi away
Wildfire
Robin fire · 38 mi away · 0 acres · updated Oct 17, 2026
First come, first servedNo reservation, and none to be had: the sites go to whoever pulls in first.

This is how it should work.

Right now
Nobody has saidNo season, no closure, no bookings to read
A night
FreeNo camping fee
Drawn from the record · 2,390 ft · 0% tree cover · Trinity Lake within reach · Bortle 2 sky
2,390 ftElevation
71 ftWater · Trinity Lake
7.5 miNE of Lewiston, CA
n/aTree cover · water-masked cell
Bortle 2Night sky · 331st darkest of 1,201 in CA

The place

the agency’s own description · what’s there

In the agency’s own words

Mariners Roost is a boat access only campground located on the Stuart Fork Arm of Trinity Lake on the east side of the Mule Creek cove. The campground offers 7 campsites. There is no piped water.

Source: USFS Enterprise Data Warehouse · Aug 24, 2026

Facilities

Drinking water
None, bring your own
“There is no piped water.”
Source: read from the agency description, shown above · Sep 12, 2026

Around the campground

On the water
Lake, Creek
Source: Stated in the agency description

Nothing to book, just show up

One of 1,623 federal campgrounds where the site still goes to whoever pulls in first, and it costs nothing at all. Get there before noon on a summer weekend.

recreation.gov publishes no availability for a campground you can’t reserve, so there’s no thirty-night reading to draw here. The season bar above is what the agency does publish.

BookingNo reservationsNothing to book, and no release date to wait forthe record
A nightFreeNo camping feethe agency’s fee record
A weekendNothingDerivedFriday and Saturday, everything includedours, from the lines above
Runs itU.S. Forest Servicethe agency’s record
Every line of the receipt · 4

What you actually pay

The sign priceU.S. Forest Service
Camping feeFree
No fee
The booking feerecreation.gov
Nothing. This campground takes no bookings, so there’s no reservation fee to pay.
What a stay costs
A night, and a whole weekendDerivedNothing

Derived by CAMPANAC: the agency’s own record says there’s no camping fee, and no booking fee, because this campground takes no reservations. A weekend here means Friday and Saturday night. Optional charges (an extra vehicle, a second tent, a dump-station fee) are listed separately and aren’t in this total.

How we know this receipt · 5
Source: USFS Enterprise Data Warehouse · Aug 24, 2026

record Aug 24, 2026 · How we know all this

Seen something wrong here? Tell us.

Getting there

the map and the coordinate

The weather

the next four days · the thirty-year normal

Next four days, and the thirty-year normal

Forecast

This Afternoon81°Sunny
Tonight50°Mostly Clear
Sunday76°Sunny
Sunday Night46°Partly Cloudy3% rain

NWS forecast for Lewiston, CA

Typical weather

Typical October night 39°F, day 76°F.

Coldest month of the year: typical December night 32°F, below freezing. Bring a bag rated colder than that, and expect ice in the water bottle.

100°32°20°

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: TRINITY RVR HATCHERY, CA (USC00049026), 8 miles away and 529 ft lower

The land, and who answers for it

what threatens it · who answers for it

Roadless country, and what’s coming for it

Roadless
Granite Peak122 acres · 6 mi · inventoried roadless area

You’re camping on ground somebody wants. We track the threats and the comment deadlines.

Who answers for this land

Jared Huffman, official portrait

Mariners Roost Boat-In Campground is in California’s 2nd congressional district. Its representative, Jared Huffman (D), votes on the laws that decide what happens to this land. Public-lands grade so far: A. See every public-lands vote →

Seen something wrong here? Tell us.

How we know

every fact on this page, and where it came from
Right now: U.S. Forest Service publishes no season and no closure for this campground, and it takes no bookings we can read. That’s a gap in the record and not a locked gate.
Cell signal: the Forest Service’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.