Campground · Idaho ·
Managed by the USDA Forest Service
Boise National Forest (NF) · Open Access
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.
From Mountain Home, Idaho travel northeast 21 miles along State Highway 20 to the Forest Service road 134 turnoff.
Take the Forest Service road 134 north approximately 6 miles to the Anderson Ranch Dam and Spillway Campground is a stone's throw from the Dam.
43.35724, -115.44747 · 43°21'26.1"N 115°26'50.9"W
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | — | — | — | — | — | — | — | — | — | — | — | — |
| Low °F | — | — | — | — | — | — | — | — | — | — | — | — |
| Precip in | 3.6 | 2.5 | 2.4 | 1.8 | 1.8 | 1.0 | 0.3 | 0.3 | 0.6 | 1.7 | 2.8 | 4.2 |
1991–2020 averages from the nearest NOAA station, 7.8 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.
Recreation.gov last updated this record on 2026-02-25.
Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.
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