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The Half Town Half is an annual Halloween race held at the Tate Pumphouse, featuring both a half marathon and a 10K. On-site registration begins at 8 a.m., with the race starting at 9 a.m. The course follows a straightforward out-and-back path from the Pumphouse to Paradise Valley Elementary and returns. The 10K turnaround is located near the first aid station, while half marathon participants continue to a second aid station at their turnaround point.
Listed in our event index as Skunk Hollow Sneaker Chase & Backyard Ultra.
The Skunk Hollow Sneaker Chase & Backyard Ultra is a trail race in Casper, Wyoming, held at the Casper Mountain Trails Center. Participants can select an 8-mile race or a Backyard Ultra, which continues with 4.17-mile laps until a single runner remains. With a total entry limit of 75, the event has the feel of a local, intimate race day rather than a large-scale competition. The 8-mile race consists of two laps, with the course direction alternating annually: clockwise in even years and counter-clockwise in odd years. The Backyard Ultra introduces a unique element where a coin toss determines the direction of each lap. The trails center serves as the location for parking, the start and finish lines, and the post-race gathering. The Backyard Ultra is recognized in the Big’s Backyard Ultra database. Race founder M. Diesburg established the event to encourage runners to surpass their perceived limitations, a concept well-suited to the last-runner-standing format.
Running: Locals run the Platte River Trail when they want steady Z2 and uncrowded urban paths along the North Platte River. The route covers 8 km with 32 m of climb, and the surface shifts from pavement to gravel and natural track east of Walsh Drive. The Platte River Trail runs 11 miles of paved pathway from the North Casper Sports Complex to Paradise Valley. Casper Windy City Striders anchors the group-run scene as an RRCA certified run club. The Trail Mix Run brings hills, spring creeks, and lots of mud. The calendar also keeps Half Town Half, T-Bird Trek, Visit Casper Marathon, Skunk Hollow Sneaker Chase, and Night Crawler in the mix.
Cycling: Locals ride pavement, gravel, and singletrack without making a production of it. The Platte River Trail works for base miles, and the Casper Rail Trail links downtown riding to the river side. The Platte River Trail runs 20 km with 136 m of gain. The trail starts 0 mi from WY-487 to Co Rd 402. The Casper Rail Trail runs 5 mi from Poison Spider Rd to Co Rd 201. Casper Mountain carries the climbs, the secluded mountain single track, and the fat-bike scene. Coal Mountain sends riders toward Circle Drive and up to the top of Casper Mountain.
Season: Spring and early summer work well because that's when the city gets most of its rain, so the dirt trails are runnable without the cold. July brings the hottest temperatures, so locals start early, keep intervals short, and save long Z2 for cooler windows. Summer runners lean on the river paths, while riders grab Casper Mountain Road Trail after work when daylight holds. Winter changes the rhythm fast. Snow can fall heavily through winter and early to mid-spring, so runners stay closer to paved paths, and cyclists shift toward groomed fat bike trails or quick rides on routes with eastern exposure.
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