Clay Flat Reservoir   Be the first to submit input for Clay Flat Reservoir. If you have info on Clay Flat Reservoir, Southern Cascade Range, Lassen County, California please submit it here to improve this web site.          These outdoors activities are available near Clay Flat Reservoir.   Lakes Near Clay Flat Reservoir: Eagle Lake, Lassen County, 18 miles away   Public Lands Near Clay Flat Reservoir: Lassen National Forest, California, 31 miles away Lassen Volcanic National Park, Mineral - CA, 57 miles away Lava Beds National Monument, Tulelake - CA, 67 miles away   Marinas On or Near Clay Flat Reservoir: Mariners Resort, Susanville, 15 miles away   Hotels Near Clay Flat Reservoir: Diamond Mountain Casino Hotel, Susanville, 30 miles away Budget Host Frontier Inn, Susanville, 32 miles away BEST WESTERN PLUS Trailside Inn, Susanville, 32 miles away Super 8 Susanville, Susanville, 32 miles away Best Western Trailside Inn, Alturas, 36 miles away   Ski Areas Near Clay Flat Reservoir: Warner Canyon, Oregon, 78 miles away       730 foot drop, 1 lifts, 14 runs Soda Springs, California, 91 miles away       625 foot drop, 5 lifts, 16 runs Boreal, California, 91 miles away       500 foot drop, 10 lifts, 41 runs