Overview
Sprague Lake is a roughly 1,760-acre natural lake in the channeled scablands of eastern Washington near the town of Sprague, in the Palouse / Cow Creek drainage. It is a shallow prairie lake managed primarily for recreation and fishery benefits rather than as a large federal storage reservoir. The lake lies in Lincoln and Adams county scabland country along the Cow Creek drainage toward the Palouse.
Maximum depth is about 20 feet, with broad flats, reed edges, and open water that can be windy and weedy in summer. The setting is agricultural scabland rather than forested mountain reservoir country. Shallow flats and reed edges dominate; summer weeds and wind chop are part of the fishing challenge.
The lake is known locally for warmwater fishing - especially bass and panfish - under Washington Department of Fish and Wildlife regulations. Public access sites support boating and shore fishing. WDFW access sites are the practical public entry points for trailered boats and shore anglers.
Levels respond mainly to local runoff, groundwater, and outlet conditions rather than a published full/winter/flood rule curve. Seasonal lows and vegetation growth strongly affect boating, so checking current conditions before a trip is worthwhile. Without a large storage dam, drought years can shrink usable water more than on nearby federal reservoirs. Visitors who track the official gage before launching avoid the most common access surprises.
Current Conditions
- Drought conditionsModerate Drought
About This Lake
Learn how this lake is managed, what affects its water level, and where Lake Insights gets its data.
Sprague Lake is a 1,760-acre natural lake with management context from Washington Department of Fish and Wildlife (fishery / access). Levels respond to rainfall, runoff, and natural inflows and outflows.





