U.S. Forest Service · Boise National Forest · Idaho

Big Trinity Lake Campground

Big Trinity Lake Campground is within the beautiful Trinity Recreation Area. There are 17 campsites on Big Trinity Lake and there are more sites near the beautiful smaller lakes in Rainbow Basin. The campgrounds in the Trinity Recreation area offer a quiet retreat in a beautiful high alpine landscape. The sites are situated within a popular summer recreation area with many activities to enjoy. There is a limited season due to late snow melt, but they are accessible by car. Natural Features. At Big Trinity Lake Campground, a fully grown moose stands near a young calf. USDA Forest Service photo by David Walsh.

More like this: first-come in Idaho · tent only in Idaho

Amenities & rules

EquipmentTents

Individual sites vary. Confirm on Recreation.gov or with the managing office.

Season & status

SeasonMid-July to End of October (unless closed by snow)
ForestBoise National Forest
BookingNo reservations and no fees are necessary. This campground with 17 sites is on a first come, first serve basis. Fee envelopes and a collection box are provided near the entrance.

Boise National Forest recreation page ↗

Weather by month

NOAA climate normals →
Weather by month near Big Trinity Lake Campground20°30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecJanuary: 29.5°F averageFebruary: 33.6°F averageMarch: 42.1°F averageApril: 49.1°F averageMay: 57.7°F averageJune: 65.1°F averageJuly: 75.3°F averageAugust: 74.1°F averageSeptember: 64.5°F averageOctober: 51.2°F averageNovember: 38.9°F averageDecember: 30.4°F averageTemp °F
The line is the average temperature at Arrowrock Dam, 25 miles from the campground at 3,235 feet, station USC00100448 in the NOAA monthly climate normals for 1991 to 2020.

Getting there

Coordinates43.6259° N, 115.4328° W · Directions ↗

Fire nearby

  • Prescribed
    Rx Mores South

    21 mi from the campground · 245 acres

  • Wildfire
    East Fork

    23 mi from the campground · 266 acres · 5% contained

  • Prescribed
    Paradise Rx

    28 mi from the campground · 400 acres

  • Prescribed
    Rx Lowman Wui

    33 mi from the campground · 63 acres

Distance is to the reported incident point, not the fire edge. Call the managing office before you drive.

Supplies & services

Dump stationDump station ↗18.6 mi
Outdoor gearBoise Gear Collective ↗38.7 mi
RV sales & serviceAllan Marsh Travel Center ↗40.8 mi

Locations © OpenStreetMap contributors. Call ahead; hours change seasonally.

Limited data for this unit

No site-by-site records, no fee schedule, no directions or photos in the Recreation.gov record. What is here comes from the agency's own listing. The rest lives there.

Checked nightly. Modules appear as soon as the record fills in.

Explore

Video

ON THE ROAD AGAIN and FISHING at Big Trinity Lake, ID | RV Living

Worth a stop

  • 0.3 mi
    Big Trinity Lake
    0.5 mi trail · hiking, horse, bike
  • 0.3 mi
    Roaring River ↗
    7.6 mi trail · hiking, horse, bike, motorcycle and 1 more
  • 0.4 mi
    Rainbow Basin ↗
    4.5 mi trail · hiking, horse, bike
  • 1 mi
    Trinity Creek Upper
    1.6 mi trail · hiking, horse, bike, motorcycle and 1 more
  • 1.2 mi
    Green Island Lake
    0.2 mi trail · hiking, horse, bike
  • 1.4 mi
    Fiddle Lake
    0.4 mi trail · hiking, horse, bike

Trailheads within three miles

Trail and trailhead records are the Forest Service's. Distances are straight-line to the nearer trail end. Trail conditions are not tracked here.

Public land it sits in

On Wilderness Atlas →

This campground sits inside Boise National Forest.

Each unit is published as a centre point and an acreage rather than a boundary, so this section stands it in for a circle of the same area. Whether a campground is inside, and how far it is from one it is outside, are both approximate.

On the National Register nearby

On Register Atlas →

Guidebooks for Idaho

We earn a small commission if you buy through these links. It does not change what we list.

Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

Do I need a reservation at Big Trinity Lake Campground?

No. Big Trinity Lake Campground is first-come, first-served. No reservations and no fees are necessary. Sites are taken on arrival and paid at the fee station.

Source: Forest Service

How many sites does Big Trinity Lake Campground have?

17 sites.

Source: Forest Service

Can I bring an RV to Big Trinity Lake Campground?

Big Trinity Lake Campground is listed for tents only.

Source: Forest Service

What if Big Trinity Lake Campground is full?

The nearest public campgrounds are Little Roaring River Lake Campground (0.5 mi, first-come), Big Roaring River Lake Campground (0.7 mi, first-come), and Elks Flat Campground (9.2 mi, partly first-come).

Source: Campgrounds nearby