Outdoor & Adventure Events in Douglas County, Colorado
Hiking, biking, nature events, and outdoor adventures in Douglas County.
Showing 19 outdoor & adventure events
Stargazing with the Denver Astronomical Society at Lost Canyon Ranch
Lost Canyon Ranch Open Space•Castle Rock
The Castle Rock Parks and Trails Foundation hosts a stargazing evening at Lost Canyon Ranch Open Space with help from...
FreeSchweiger Ranch Open Day Self-Guided Tour (August)
Schweiger Ranch•Parker
<p>Free self-guided visits at Schweiger Ranch — third Saturday of the month.</p>
FreeGeology Hike at Cherokee Ranch
Cherokee Ranch & Castle•Sedalia
A moderate guided hike (about 2.5 hours) over Raccoon Knob and Cherokee Mountain with leader John McKinney, interpret...
Guided Nature Hike: Common Backyard Birds at Prairie Sky
Prairie Sky Park•Lone Tree
<p>Free guided Common Backyard Birds hike at Prairie Sky Park. Learn to identify the birds in your own backyard. Pre-...
FreeCastle Rock Day at Rueter-Hess Reservoir
Rueter-Hess Reservoir•Castle Rock
Event date: August 16, 2026 Event Time: 08:00 AM - 06:00 PM Location: 9343 Double Angel Road Parker, CO 80134 Descrip...
FreeHike: Setting of the Sun & Rising of the Full Moon
Cherokee Ranch & Castle•Sedalia
A guided moderate evening hike up Cherokee Mountain to watch the sun set behind the mountains and the full moon rise ...
Guided Nature Hike: Sturgeon Moon at Bluffs Regional
Bluffs Regional Park Trail•Lone Tree
<p>Free guided Sturgeon Moon hike at Bluffs Regional Park. Pre-registration required.</p>
FreeGuided Nature Hike: Native American Plant Uses at Prairie Sky
Prairie Sky Park•Lone Tree
<p>Free guided hike exploring Native American plant uses and history at Prairie Sky Park. Pre-registration required.</p>
FreeGuided Nature Hike: Urban Coyotes at Prairie Sky Park
Prairie Sky Park•Lone Tree
<p>Free guided Urban Coyotes hike at Prairie Sky Park. Learn about coyote behavior and how to coexist with them. Pre-...
FreeElk Bugling Sightings & Sounds at Cherokee Ranch
Cherokee Ranch & Castle•Sedalia
A fall tradition at Cherokee Ranch & Castle: learn about elk mating rituals while listening to their rutting calls fr...
Elk Bugling Sightings & Sounds at Cherokee Ranch
Cherokee Ranch & Castle•Sedalia
A fall tradition at Cherokee Ranch & Castle: learn about elk mating rituals while listening to their rutting calls fr...
Schweiger Ranch Open Day Self-Guided Tour (September)
Schweiger Ranch•Parker
<p>Free self-guided visits at Schweiger Ranch — third Saturday of the month.</p>
FreeElk Bugling Sightings & Sounds at Cherokee Ranch
Cherokee Ranch & Castle•Sedalia
A fall tradition at Cherokee Ranch & Castle: learn about elk mating rituals while listening to their rutting calls fr...
Elk Bugling Sightings & Sounds at Cherokee Ranch
Cherokee Ranch & Castle•Sedalia
A fall tradition at Cherokee Ranch & Castle: learn about elk mating rituals while listening to their rutting calls fr...
Guided Nature Hike: Harvest Moon at Bluffs Regional
Bluffs Regional Park Trail•Lone Tree
<p>Free guided Harvest Moon hike at Bluffs Regional Park. Pre-registration required.</p>
FreeElk Bugling Sightings & Sounds at Cherokee Ranch
Cherokee Ranch & Castle•Sedalia
A fall tradition at Cherokee Ranch & Castle: learn about elk mating rituals while listening to their rutting calls fr...
Elk Bugling Sightings & Sounds at Cherokee Ranch
Cherokee Ranch & Castle•Sedalia
A fall tradition at Cherokee Ranch & Castle: learn about elk mating rituals while listening to their rutting calls fr...
Guided Nature Hike: Amazing Corvids at Prairie Sky Park
Prairie Sky Park•Lone Tree
<p>Free guided hike exploring crows, ravens, magpies and other corvids at Prairie Sky Park. Pre-registration required...
FreeGuided Nature Hike: Hunter's Moon at Bluffs Regional
Bluffs Regional Park Trail•Lone Tree
<p>Free guided Hunter's Moon hike at Bluffs Regional Park. Pre-registration required.</p>
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