Bureau of Reclamation, Colorado.
Shadow Mountain Dam and Reservoir, Colorado-Big Thompson Project, are on the Colorado River below its confluence with the Grand Lake outlet. Developments include 1 campground with 80 campsites and 2 boat-launch ramps. Good access exists. Total water surface available for recreation is approximately 1,346 surface acres and 8 miles of shoreline. Primary recreational activities are camping, fishing, and power boating. Primary sport fish are bown trout, rainbow trout, and salmon. Facilities closed in winter due to ice and snow conditions. Current Reservoir Levels.
Effective immediately, Reclamation will require all boats launching at Lake Berryessa to participate in a seal program to prevent the spread of invasive mussels. All vessels wishing to launch at Lake Berryessa will be inspected. A red quarantine seal will be applied for 30 days during, which the vessel will not be permitted to launch. Vessels that have finished the 30-day quarantine may return to the lake and have the seal removed by authorized staff and will be allowed to launch. For more information on this updated protocol, please view the press release here: https://www.usbr.gov/newsroom/news-release/5031.
North from Granby, Colorado on U.S. 34.