Description - Rising out of the reservoir's east side at Sandy Beach is a series of sand dunes that reach from the Great Divide Basin and the Green River to the sand hills of Nebraska. The Arapaho and Cheyenne Indians arrived in southeastern Wyoming and the North Platte River Basin in the
18th century. The Oglala and Brule Sioux arrived in the 1830s, moving into eastern Wyoming from South Dakota. Tipi rings and a variety of cultural artifacts can still be found at Glendo State Park and the surrounding area. Remember though, removing artifacts is unlawful. Although now mostly covered by water, two or more branches of the Oregon-Utah-California Trail went through the area. Upon close examination you can still see evidence of the historic trail. Fertile ground was an enticement to early farmers and ranchers. At one time some of the finest potatoes in northeastern Wyoming were grown here. Glendo Dam construction began in 1954. The dam was completed in 1957 and the power plant in 1958. The dam is an earth fill structure 2,096 feet long and 167 feet high.
- Available species include walleye, yellow perch, and channel catfish. Channel catfish are stocked in the reservoir. Brown trout, rainbow trout, and channel catfish are stocked in the river above the reservoir. Below the dam, the river is stocked with brown, rainbow, and cutthroat trout. Plans to stock the river immediately below the dam with largemouth bass and channel catfish. Scenic overlooks and three interpretive nature trails. The Glendo Dam Wetlands Trail, located along the river, just below the dam, features two fishing/observation piers. The Muddy Bay Wetlands Interpretive Nature Trail is located on the east side of Muddy Bay. Glendo Dam Overlook Trail is located north of Glendo Dam. Across from Glando Powerplant below the dam there is a boat ramp giving access to the North Platte River.
Recreation - Recreational activities in the park include camping, fishing, boating, and wildlife viewing. State Park has seven campgrounds, six boat ramps and a marina concession.
Climate - As throughout the Rocky Mountains, the climate varies drastically depending on elevation. Summers generally offer warm clear days with cool nights. Afternoon thunderstorms are often a possibility in the summer. In the winter, sunshine, with plenty of snow in the higher elevations, are ideal for winter activities. Harsh weather - including wind, cold, and snow - is possible throughout the winter and even throughout the year, in the highest elevations.
Glendo Reservoir is located on the North Platte River, 6 miles southeast of the town of Glendo, in Platte County. Access from I-25 is via County Rd. 17, Glendo Park Road.