USDA Forest Service · Idaho

Spillway Campground

USDA Forest Service · Idaho, United States

Open on the map Drive there Official page Directions
Drinking water
No
Restrooms
Yes
Elevation
4,226 ft
Dark sky
Bortle class 1
Cell coverage
T-Mobile none · AT&T none · Verizon none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
Access road
SPILLWAY CG (NFSR 134A) · native material · high clearance vehicles
Lake
Boise National Forest
Address
ID
Activities
<p> Check with the Idaho Fish and Game for hunting opportinities in the area.</p> , Hiking, Picnic tables are in the surrounding area., Take a drive and enjoy the beautiful scenery that surrounds you., Total of 3 sites., West shore of Anderson Ranch Reservoir.

Season dates aren't confirmed for this campground yet - opening and closing dates haven't been verified. Check the operator's page or call ahead before you plan a trip.

Site map

The imagery of the campground. Press and hold the map to drop your own pins and notes; the operator publishes no site points here. Your ratings, notes, pins and photos are kept with the campground on your Saved list, the same list the camping map and the drive page keep.

Site map · loading…

About

Overview:

Spillway Campground is a small campground with 3 campsites along Anderson Ranch Reservoir.  The reservoir is a popular destination for fishing, boating, waterskiing and riding personal watercraft.

There is excellent fishing in the reservoir for smallmouth bass and kokanee. Also try your luck at fly fishing just below the dam for a trout!

Rafting access is at Reclamation Village, just south of the campground.

Weather, month by month

MonthTypical highTypical lowColdest nightHottest dayYears with a night below 32°F
January35°18°0°45°11 of 11
February37°22°-4°52°11 of 11
March44°27°14°70°11 of 11
April50°30°12°72°10 of 11
May64°42°31°81°1 of 11
June74°51°35°93°0 of 11
July90°60°46°100°0 of 11
August88°60°48°98°0 of 11
September76°51°41°89°0 of 11
October61°38°28°78°4 of 10
November48°30°-4°65°9 of 10
December36°16°0°53°10 of 10

Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.

Trails nearby

All 494 trails in Boise National Forest

Trailheads the Park Service and the Forest Service map, within 10 miles as the crow flies; each trail's page has its length, climbing and the Service's description.

Nearby campgrounds

All public campgrounds in Idaho · Every state and province · Facts read from the operator 2026-02-25. Confirm fees, rules and current status with the operator before you go.