Lake Adam Upper Reservoir   Be the first to submit input for Lake Adam Upper Reservoir. If you have info on Lake Adam Upper Reservoir, Sweet Grass County, Montana please submit it here to improve this web site.          These outdoors activities are available near Lake Adam Upper Reservoir.   Public Lands Near Lake Adam Upper Reservoir: Greycliff Prairie Dog Town State Park, Montana, 14 miles away Natural Bridge State Park, Montana, 36 miles away   Hotels Near Lake Adam Upper Reservoir: Super 8 Big Timber, Big Timber, 15 miles away Super 8 Columbus, Columbus, 44 miles away   Ski Areas Near Lake Adam Upper Reservoir: Red Lodge Mountain, Montana, 53 miles away       2400 foot drop, 8 lifts, 70 runs Showdown, Montana, 72 miles away       1400 foot drop, 4 lifts, 34 runs Bridger Bowl, Montana, 76 miles away       2600 foot drop, 8 lifts, 71 runs   Whitewater Near Lake Adam Upper Reservoir: Yellowstone River, Stillwater/ YellowstoneCounty, 13 miles away       Class I-III - 76 miles long (Boulder River to Clarks Fork Yellowstone River)