Thorn Lake   Be the first to submit input for Thorn Lake. If you have info on Thorn Lake, Front Range, Gilpin County, Colorado please submit it here to improve this web site.          These outdoors activities are available near Thorn Lake.   Lakes Near Thorn Lake: Left Hand Reservoir, Boulder County, 12 miles away Yankee Doodle Lake, Boulder County, 14 miles away Jenny Lake, Boulder County, 14 miles away Idaho Springs Reservoir, Clear Creek County, 16 miles away Lake Dorothy, Boulder County, 17 miles away   Public Lands Near Thorn Lake: Golden Gate Canyon State Park, Colorado, 5 miles away Eldorado State Park, Colorado, 10 miles away Chatfield Lake State Recreation Area, Colorado, 33 miles away Rocky Mountain National Park, Estes Park - CO, 26 miles away Florissant Fossil Beds National Monument, Florissant - CO, 54 miles away   Marinas On or Near Thorn Lake: Boulder Reservoir, Boulder, 18 miles away   Camp Grounds Near Thorn Lake: Reverends Ridge Campground, Gilpin County, 1 miles away Central City Blackhawk Campground, Golden, 3 miles away Dory Hill KOA Campground, Golden, 3 miles away Rimrock Campground, Gilpin County, 3 miles away   Hotels Near Thorn Lake: Ameristar Casino Resort Spa Black Hawk, Black Hawk, 5 miles away Best Western Lodge At Nederland, Nederland, 6 miles away Miners Pick Bed and Breakfast, Idaho Springs, 8 miles away Alps Boulder Canyon Inn, Boulder, 12 miles away Quality Suites at Evergreen Parkway, Evergreen, 13 miles away   Hiking Trails Near Thorn Lake: Bolling Gulch Trail, Gilpin County, 3 miles away Mount Thorodin Trail, Gilpin County, 3 miles away Lost Lake Trail, Boulder County, 11 miles away   Ski Areas Near Thorn Lake: Eldora, Colorado, 9 miles away       1600 foot drop, 12 lifts, 53 runs Winter Park, Colorado, 21 miles away       3060 foot drop, 26 lifts, 145 runs Arapahoe Basin, Colorado, 31 miles away       2270 foot drop, 7 lifts, 105 runs   Whitewater Near Thorn Lake: Boulder Creek - South, BoulderCounty, 3 miles away       Class V+ - 2.6 miles long (Pinecliffe to Gross Mountain Reservoir) Boulder Creek - South, BoulderCounty, 4 miles away       Class IV - 6 miles long (Rollinsville to Pinecliffe) Jasper Creek, BoulderCounty, 5 miles away       Class V+ - 1 miles long (to Boulder Creek)