Spencer Reservoir   Be the first to submit input for Spencer Reservoir. If you have info on Spencer Reservoir, Owyhee County, Idaho please submit it here to improve this web site.          These outdoors activities are available near Spencer Reservoir.   Lakes Near Spencer Reservoir: Triangle Reservoir, Owyhee County, 3 miles away   Hotels Near Spencer Reservoir: Super 8 Nampa, Nampa, 40 miles away Sleep Inn Nampa, Nampa, 40 miles away Fairfield Inn & Suites Boise Nampa, Nampa, 40 miles away Holiday Inn Express Hotel & Suites NAMPA, Nampa, 40 miles away Hampton Inn Suites Nampa, Nampa, 41 miles away   Ski Areas Near Spencer Reservoir: Bogus Basin, Idaho, 61 miles away       1800 foot drop, 7 lifts, 52 runs   Whitewater Near Spencer Reservoir: Deep Creek, OwyheeCounty, 17 miles away       Class I-II - 39 miles long (Mudflat Road to Rickard Crossing Owyhee River) Battle Creek, OwyheeCounty, 18 miles away       Class II-III - 29 miles long (Headwaters to Owyhee River)