Shadow Mountain Lake

Shadow Mountain Lake
Shadow Mountain Lake looking West
Location	Grand County, Colorado, United States
Coordinates	40°13′40″N 105°50′35″W / 40.22778°N 105.84306°W / 40.22778; -105.84306Coordinates: 40°13′40″N 105°50′35″W / 40.22778°N 105.84306°W / 40.22778; -105.84306
Basin countries	United States
Surface area	1346 acres
Water volume	16,848 acre feet (20,782,000 m3)
Surface elevation	2,550.2616 m (8,367.000 ft)
Settlements	Grand Lake

Shadow Mountain Lake is a reservoir in Grand County, Colorado, near the headwaters of the Colorado River. Shadow Mountain Lake is created by Shadow Mountain Dam. The lake forms a continuous body of water with Grand Lake, the largest natural lake in Colorado; they are separated by gates.

Shadow Mountain Lake is part of Arapaho National Recreation Area.

The creation of Shadow Mountain Lake was authorized by the Colorado-Big Thompson bill, passed in 1937,^[1] which also created the Colorado-Big Thompson Project. Water from the Grand Lake-Shadow Mountain Lake body is diverted through the Alva B. Adams tunnel, at the eastern edge of Grand Lake, into the Big Thompson River on the east side of the Continental Divide. Storage began in 1947.

Colorado River system
Jurisdictions	United States Arizona California Colorado Nevada New Mexico Utah Wyoming Mexico Baja California Sonora
Canyons	Byers Canyon Gore Canyon Red Gorge Glenwood Canyon De Beque Canyon Horsethief Canyon Ruby Canyon Westwater Canyon Cataract Canyon Narrow Canyon Glen Canyon Grand Canyon Marble Canyon Granite Gorge Middle Granite Gorge Lower Granite Gorge Grand Wash Canyon Iceberg Canyon Virgin Canyon Boulder Canyon Black Canyon Pyramid Canyon Mohave Canyon
Natural features	River course Rocky Mountains Colorado River Basin Colorado Plateau Grand Lake Horseshoe Bend Sonoran Desert Mojave Desert Lower Colorado River Valley Mohave Valley Parker Valley Palo Verde Valley Colorado Desert Alamo River New River Salton Sea Imperial Valley Delta Montague Island Gulf of California/Sea of Cortez
Tributaries	Blue River Dirty Devil River Dolores River Escalante River Eagle River Fraser River Gila River Green River Gunnison River Kanab Creek Little Colorado River Paria River Roaring Fork River San Juan River Virgin River Las Vegas Wash Williams Fork Río Hardy
Engineering	Mainstem dams Shadow Mountain Granby Windy Gap Grand Valley Price-Stubb Glen Canyon Hoover Davis Parker Headgate Rock Palo Verde Imperial Laguna Morelos Major reservoirs Fontenelle Reservoir Flaming Gorge Reservoir Blue Mesa Reservoir Navajo Lake Lake Powell Lake Mead Lake Mohave Lake Havasu Imperial Reservoir Theodore Roosevelt Lake San Carlos Lake Aqueducts and canals Grand Ditch Colorado River Aqueduct San Diego Aqueduct Central Arizona Project All-American Canal Coachella Canal Water projects Boulder Canyon Project Colorado-Big Thompson Project Colorado River Storage Project Grand Valley AVA Yuma Project
Designated areas	Arches National Park Canyonlands National Park Colorado National Monument Dead Horse Point State Park Glen Canyon National Recreation Area Grand Canyon National Park Lake Mead National Recreation Area Rocky Mountain National Park
Related topics	Arizona v. California Colorado River Board of California Colorado River Compact Floyd Dominy Lee's Ferry International Boundary and Water Commission Metropolitan Water District of Southern California Rapids and features U.S. Bureau of Reclamation William Mulholland

Notes and references