This body of water is often confused with the Pothole Lakes themselves, which are a 30- to 45-minute drive from the park.

Coordinates: 47.0126041°N, -119.3436436°W Approx.

All maps and charts are for reference purposes only. Panfishing in certain years can be very good, but is inconsistent year-to-year. Not for navigation.

ChartSelect™ is Humminbird’s digital map store. The fishing maps app include HD lake depth contours, along with advanced features found in Fish Finder / Gps Chart Plotter systems, turning your device into a Depth Finder. Our maps use OpenStreetMap. Potholes State Park is a 773-acre camping park with 6,000 feet of freshwater shoreline on O'Sullivan Reservoir. ChartSelect Products. When you purchase our Lake Maps App, you get all the great marine chart app features like fishing spots, along with Potholes Reservoir lake depth map. On ChartSelect, you can select, purchase and download individual High Definition LakeMaster lake maps for use with your Humminbird fish finder or Humminbird FishSmart App. With a maximum depth of 142 feet and mean depth of 18 feet, there is a wide fluctuation of water in the reservoir due to the irrigation process.

Potholes Reservoir is located about seven miles south of the City of Moses Lake. This Resource Management Plan (RMP) was developed for the Potholes Reservoir area (Potholes Management Area), in Grant County, Washington, to provide management guidance for the land and water resources under U.S. Bureau of Reclamation (Reclamation) jurisdiction at Potholes Reservoir (Figure 1.1-1 RMP Location Map).


Elevation: 1,043 feet (318 meters) USGS Topo Map Quad: Moses Lake South Feature Type: Reservoir Potholes Reservoir Information. No power is generated from the O'Sullivan Dam. This body of water is open year-round and offers a variety of fishing opportunties for warmwater fish and trout.
areas of assumed shallow water (depth of less than approximately 2 metres in tidal waters and the shallower water in inland waters at full supply) And to the Office of Environment and Heritage NSW and Sydney Water Monitoring Services. Surrounded by sand dunes and rocky canyons, Potholes Reservoir is a nature lover's paradise. The terrain is desert with freshwater marshes. Most anglers fish for Walleye, Smallmouth Bass, and Largemouth Bass.