IdahoReservoirElmore County

Anderson Ranch Reservoir

Anderson Ranch Reservoir covers about 4,815 acres in Idaho. The lake is in Elmore County. USFS / USBR manages it. The gauge last read 4,154.04 ft.

Photo: United States Bureau of Reclamation · Public domain · Wikimedia Commons

CountiesElmore County

Coordinates43.3981, -115.3625

Surface area4,815 acres

Managed byUSFS / USBR

Swimming beaches on Anderson Ranch Reservoir

No named swimming beach is mapped yet for this lake. Access is through agency day-use areas and boat ramps listed below. We add beach pages only when we can confirm a name, coordinates and an operating agency.

Anderson Ranch Reservoir on the map

Lake center, swimming spots and access points.

Get directions

Weather and water temperature

Air temperature and wind from Open-Meteo. Water temperature only when the lake has a public sensor.

Weather data by Open-Meteo

Swimming at Anderson Ranch Reservoir

Anderson Ranch Reservoir has no catalogued swimming beach in the sources we read, so plan around the managing agency's own facilities. Where there is no marked beach, entry is usually from a boat ramp or an unimproved bank. The nearest mapped swimming spot is Sandy Point Beach on Lucky Peak Lake, roughly 36 miles away.

No public sensor reports water temperature at Anderson Ranch Reservoir, so the panel shows air temperature and wind. Inland lakes are not monitored the way ocean beaches are, so posted signs matter more here. Swimming season in Idaho runs through the warm months, and day-use areas set their own opening dates.

Nearby water includes Arrowrock Reservoir (Idaho, 28 mi), Lucky Peak Lake (Idaho, 35 mi) and C.J. Strike Reservoir (Idaho, 43 mi). In all, 26 lakes in Idaho are covered here.

Station 13190000, ANDERSON RANCH RES AT ANDERSON RANCH DAM ID, publishes the water surface elevation used here. The last value stored here, 4,154.04 ft, is from 2026-09-09. Water level decides what is usable on the shoreline, from beach width to ramp access.