The lake bed in 3-D: deep basin, drop-offs and shoreline. Shape estimated, not for navigation. Spot 1 (point drop-off) is open for everyone; the other 6 come with LakeScope PRO. Full screen
Anderson Ranch Reservoir
Elmore County, Idaho · 4,820 acres (7.5 sq mi)
49°F water, windy Friday (17 mph SE).
About Anderson Ranch Reservoir
Anderson Ranch Reservoir is a reservoir in Elmore County, Idaho, covering 4,820 acres. It was made by Anderson Ranch Dam on the South Fork Boise River. Anderson Ranch Reservoir is formed by Anderson Ranch Dam on the South Fork Boise River.
From end to end it runs about 8.6 miles with roughly 37 miles of shoreline. At about 4,190 ft above sea level, it follows the seasons of the region. Mountain Home lies about 20 miles to the southwest. Boise, the nearest city, is about 42 miles west.
- Size
- 4,820 acres (7.5 sq mi)
- Shoreline
- About 37 miles
- End to end
- About 8.6 miles
- Elevation
- About 4,190 ft
- Type
- Reservoir
- Dam
- Anderson Ranch Dam, South Fork Boise River
- County
- Elmore County
The lake from above
Best fishing times
Saturday Good
- 7:00 am – 9:15 amsunrise · wind 9 mph
- 4:00 pm – 6:00 pm bestsunset, moon overhead · wind 7 mph
Sunday Good
- 7:00 am – 9:15 amsunrise · wind 6 mph
- 4:45 pm – 6:00 pm bestsunset, moon overhead · wind 13 mph
Based on sun and moon times and the wind forecast. A guide, not a promise. The app shows the whole week.
Fish to expect
For a lake of this size in Idaho, largemouth bass, walleye, crappie, bluegill and sunfish and catfish are the fish to expect. The state fish and wildlife agency lists what is stocked and the rules for this lake. With the surface at 49°F, the notes below say which of them should be biting.
- FairLargemouth bass
Cooling down. Try slow baits on points and deeper channel edges.
- GoodWalleye
Good cool-water bite, best at dusk and after dark.
- FairCrappie
Schooled on deeper brush piles. Fish small jigs slowly.
- SlowBluegill and sunfish
Cold. Deep and hard to tempt. Use tiny baits.
- SlowCatfish
Cold. Slow, in the deepest holes. Cut bait works best.
From today's water temperature and the season. A guide, not a promise.
Fishing spots
- 1Point drop-off
The bottom falls away fast off this point; fish rest deep and move up the slope to feed.
- 2
- 3
- 4
- 5
- 6
- 7
6 more spots with LakeScope PRO: fish, depth band, water temperature, best time and bait for each.
Picked from the shape of the lake bed. A guide, not a promise.
Water temperature
At the surface, seen .
Water level
No daily level reading for this lake.
Ice
Open water
Ice thickness is an estimate from air temperature, not a measurement. Check the ice yourself before going on it.
Weather and wind
Sunrise 7:32 am · sunset 5:18 pm · waxing crescent moon (lake time).
Towns and places to stay near Anderson Ranch Reservoir
- Mountain Homeabout 20 mi southwest
- Fairfieldabout 25 mi east
- Glenns Ferryabout 28 mi south
- Boisenearest city, about 42 mi west
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Questions about Anderson Ranch Reservoir
What fish are in Anderson Ranch Reservoir?
Lakes like Anderson Ranch Reservoir usually hold largemouth bass, walleye, crappie, bluegill and sunfish and catfish. Check the state fish and wildlife agency for stocking and limits.
How deep is Anderson Ranch Reservoir?
We have no published depth for this lake. The 3-D view gives an estimated shape of the bed: where the deep basin and the drop-offs are. Not for navigation.
How big is Anderson Ranch Reservoir?
4,820 acres, with about 37 miles of shoreline.
What town is near Anderson Ranch Reservoir?
Mountain Home is about 20 miles southwest; Fairfield is about 25 miles east.
What is the water temperature at Anderson Ranch Reservoir today?
The surface was about 49°F on the latest clear reading. The page updates every day.
Anderson Ranch Reservoir on your phone
The whole week of bite times, lake alerts and the 3-D view, every morning.
