Contact: Cassie Wells, 307-836-2334; This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Low Water Notice at Guernsey State Park

 

GUERNSEY, Wyo. – June 27, 2025 – The Bureau of Reclamation has announced its annual silt run at Guernsey State Park. As a result, the reservoir will experience a rapid decline in water levels starting July 6. The boat ramps will be unusable from approximately July 9 through July 26. Water levels at Guernsey Reservoir are expected to be suitable for boating again by the morning of July 27. The reservoir will continue to rise by about 3 feet per day and is anticipated to reach the normal operational level by July 29.

 

"We appreciate the understanding and patience of our visitors during this period. While water levels may be low, Guernsey State Park still offers a wide range of outdoor activities and beautiful scenery," stated Cassie Wells, superintendent of Guernsey State Park. "We encourage everyone to come out and experience everything our park offers."

 

Despite the low water levels, many recreational activities will still be available, including camping, hiking, and mountain biking. The playground and museum will remain open. The park also features some of the best examples of Civilian Conservation Corps (CCC) work in the Rocky Mountain region.

 

Customers with affected reservations can modify their bookings online at reserve.wyoming.gov or by calling 877-996-7275.

 

Nearby boating opportunities are available at Glendo State Park, Hawk Springs State Recreation Area, Gray Rocks Reservoir, and other locations.

 

Boaters and recreationists are advised to take proper precautions in response to the changing river flows below Glendo and Guernsey Reservoirs and the rapid lowering and refilling of Guernsey Reservoir during this period.

 

For more information about Guernsey State Park, please call 307-836-2334 or visit wyoparks.wyo.gov/guernsey.

 

Figure 1: Image of Guernsey Reservoir during the annual silt run. 

 

Contact: Cassie Wells, 307-836-2334; This email address is being protected from spambots. You need JavaScript enabled to view it.