We only print a date once the organizer has published it. Everything else says 'not yet announced' until it is.
Lake DeSmet
The fifth annual derby ran Feb. 22, 2025, with 200 tagged fish worth $250 each and prizes for the longest trout, walleye and perch. Watch for the 2027 date. [Source]
Sheridan · about 26 miles north on I-90
The Sheridan WYO Rodeo and World Championship Indian Relay run July 14-17, inside a Rodeo Week of July 12-18. Plan lodging early for that week. [Source]
Buffalo · 8 miles south
Buffalo’s celebration of the Longmire books and show. The 2026 edition ran July 16-19. [Source]
Running an event at or near the lake? Send the date and a link to hello@visitlakedesmet.com and we will add it.
Derby and festival dates go in the Lake Letter as organizers announce them.