General Information Type of Recreation: Day-Use, Boating and Primitive Camping State: Washington County: Whitman Administering Office: Lower Granite Natural Resources Office Location: Lower Granite Lake, Snake River Mile 123, North River Bank. Acreage: 8 Acres Fire Restrictions: No wood fires June 10 through October 10. Charcoal and propane gas fires are acceptable. Season and Hours of Operation: Year round, with no specific hours of operation. Camping and Boat launching are free of charge. Pets must be kept on a leash. Horses and hunting are prohibited. No wood fires allowed from June 10 through October 10. Charcoal and propane fires are acceptable. The Lower Granite Natural Resources Office can be reached at 509-751-0240.