Grouse Mountain Reserve is a 5,000-acre mountain property in Cascade, Idaho with direct access off Warm Lake Road and nearly 2,000 feet of elevation change from 5,080 to 7,080 feet. The property features extensive live water with Big Creek flowing approximately 2.5 miles and Horsethief Creek an additional 1.65 miles. The entire eastern boundary borders Idaho Department of Lands and State Lands, providing added privacy and seamless access to thousands of acres of adjoining ground. With a mix of timbered slopes, open benches, and elevated build sites overlooking Horsethief Reservoir, this property offers scale, water, and exceptional recreational appeal in one of Valley County’s most desirable locations.