Road Run✓ Verified 2026-06-25
Visit Casper Marathon
Annual · first Sunday in June
📍 Downtown Casper
Beginner-friendlyPaidSummer
Marathon, half, relays and 10K along the North Platte. Boston-qualifying.
The weekly outdoor lineup for Casper.
Casper Mountain rides, river fishing, climbs, group runs, and meetups across Casper and the North Platte — find something to show up to this week.
Browse by activity
This week · 2 scheduled
Sunday
Wednesday
Hiking✓ Verified 2026-06-25
Odd-Wednesday Hikes
Izaak Walton League Hiking Club
Every odd Wednesday, Apr–Sep · open to all
📍 Casper Mountain & Muddy Mountain trailheads
Beginner-friendlyNo-dropDog-friendlyFreeSummer
Leashed dogs welcome; not members-only. Hikes on Casper Mtn, Muddy Mtn and local parks.
More recurring & seasonal
Groups whose schedule rotates or is seasonal — check the source for the next date.
MTB⚠ Needs verification
♥ FeaturedTrail Build Days
Central Wyoming Trails Alliance
Volunteer build & maintenance days — see calendar
📍 Casper Mountain trailheads
Beginner-friendlyFreeSummer
Fly Fishing⚠ Needs verification
♥ FeaturedGuided North Platte Trips
Guided float & wade trips — book year-round
📍 North Platte River, Casper area
Beginner-friendlyPaid
Blue-ribbon North Platte — Grey Reef, Miracle Mile and Fremont Canyon.
Road Run⚠ Needs verification
Club Group Runs
Group runs for all abilities — see club page
📍 Around Casper
Beginner-friendlyNo-dropFree
Trail Run⚠ Needs verification
Casper Mountain Trail Runs
Seasonal trail outings — see club page
📍 Casper Mountain trailheads
Beginner-friendlyNo-dropFreeSummer
MTB⚠ Needs verification
Community Group Rides
Central Wyoming Trails Alliance
Seasonal group rides & events — see calendar
📍 Casper Mountain trailheads
Beginner-friendlyFreeSummer
Cycling⚠ Needs verification
Shop Group Rides
Seasonal shop rides — ask in store
📍 Mountain Sports, 543 S Center St, Casper
Beginner-friendlyFreeSummer
Cycling⚠ Needs verification
Women’s Group Rides
Friendly all-abilities rides — see Strava club
📍 Around Casper
Beginner-friendlyNo-dropFreeSummer
Hiking⚠ Needs verification
River Trail Walks & Rides
Self-guided on the 11-mile North Platte River Trail
📍 Platte River Trails, Casper
Beginner-friendlyDog-friendlyFree
Hiking⚠ Needs verification
Riverfest & Cleanups
Annual Riverfest, Spring Cleanup & DogFest
📍 Platte River corridor, Casper
Beginner-friendlyFreeSummer
Climbing⚠ Needs verification
Open Climbing
Open climbing daily — afternoons & evenings
📍 5150 Rock Gym, 408 N Beverly St, Casper
Beginner-friendlyCost varies
Casper’s only indoor gym; top-rope and bouldering for all levels.
Climbing⚠ Needs verification
Fremont Canyon Gear & Beta
Local guidebook, gear and current crag conditions
📍 Mountain Sports, 543 S Center St, Casper
Beginner-friendlyCost varies
Fremont Canyon: granite trad & sport, 5.6–5.13, above the North Platte.
Birding⚠ Needs verification
Bird Walks & Field Trips
Seasonal field trips & bird walks — see events
📍 Casper-area birding sites
Beginner-friendlyFree
Birding⚠ Needs verification
Monthly Programs
Membership programs & presentations through the season
📍 Casper
Beginner-friendlyFree
Fly Fishing⚠ Needs verification
Grey Reef Float Trips
Guided float & walk-wade trips — book year-round
📍 North Platte River near Alcova
Beginner-friendlyPaid
Fly Fishing⚠ Needs verification
Reef Fly Shop Guided Trips
North Platte Lodge & The Reef Fly Shop
Guided trips, drift-boat rentals & shuttles — year-round
📍 North Platte River near Alcova
Beginner-friendlyPaid
Paddling⚠ Needs verification
River Rentals & Floats
Raft, kayak, canoe, SUP & tube rentals · Jun–Sep
📍 North Platte River, Casper
Beginner-friendlyCost variesSummer
Self-guided floats and guided trips through the downtown Whitewater Park.
Paddling⚠ Needs verification
Whitewater Park Paddling
Surf & play the man-made wave features · summer
📍 Platte River Whitewater Park, Casper
Beginner-friendlyCost variesSummer
Four rock features for supervised beginner/intermediate boaters; summer kayak rodeo.
Hiking⚠ Needs verification
Outdoor Rec & Tourism Program
Academic program with hands-on field components
📍 Casper College, Casper
Beginner-friendlyPaid