Moses Lake

Moses Lake is a reservoir in Grant County, Washington, with three main arms stretching across 18 miles and several islands including Crest, Marsh, Gaileys, and Goat Island. The lake has an average depth of 18 feet (5.5 m) and features distinct sections offering different recreational opportunities.

The original lake was transformed in the early 1900s through damming as part of the Columbia Basin Project managed by the Bureau of Reclamation. This development connected the region to broader water management and power generation efforts.

The name comes from Chief Moses of the Sinkiuse tribe, who negotiated with settlers in the 1880s. Today the lake serves as a gathering place for fishing enthusiasts and water sports fans from across the region.

The lake is accessible year-round and ideal for boating, fishing, and water sports like wakeboarding and swimming. Multiple public access points and recreation areas around the shoreline make it easy to find a spot and park.

The lake's distinct sections called horns—Lewis Horn, Parker Horn, and Pelican Horn—each have their own character and attract different activities depending on conditions. Visitors often find that each horn has its own crowd and feel, making exploration a varied experience.

Location: Washington

Location: Grant County

Elevation above the sea: 320 m

GPS coordinates: 47.13627,-119.34163

Latest update: December 8, 2025 19:54