Image Credits
Many of the trail photos on Colorado United come from Wikimedia Commons contributors under Creative Commons licenses (CC0, Public Domain, CC BY, CC BY-SA). We're grateful to the photographers whose work we use. Click any photo title to see the original on Wikimedia Commons.
| Used as | Photo | By | License |
|---|---|---|---|
| /images/trails/chasm-lake.jpg | Chasm view wall.jpg | Khoshhat | CC BY-SA 4.0 |
| /images/trails/flatirons-vista-trail.jpg | Paragon Estates open-space path at Vaquero Drive with Flatirons, Boulder County, Colorado, USA - 2025.jpg | Mikepascoe | CC0 |
| /images/trails/grays-torreys-peaks.jpg | Grays Peak Trail, cairn, hikers, Grays & Torreys.jpg | Xnatedawgx | CC BY-SA 4.0 |
| /images/trails/mohawk-lakes.jpg | Mohawk Lake, CO.jpg | Adam Baker from Houston / Moscow / Toulouse (travel a lot) | CC BY 2.0 |
| /images/trails/mount-bierstadt.jpg | Mount Bierstadt seen from Guanella Pass, July 2016.jpg | Thomson200 | CC0 |
| /images/trails/chicago-lakes.jpg | Chicago Lakes, by Chamberlain, W. G. (William Gunnison).jpg | Chamberlain, W. G. (William Gunnison) -- Photographer | Public domain |
| /images/trails/zapata-falls.jpg | Zapata Falls sign - colorado.jpg | Servantsheart8 | CC BY-SA 4.0 |
| /images/trails/devils-head-lookout.jpg | Devil's Head Lookout Tower.JPG | Glennfcowan | CC BY 3.0 |
| /images/trails/ice-lake-basin.jpg | Sierra San Juan. View in Ice Lakes Basin. Telluride Quadrangle. San Juan County, Colorado. - NARA - 517099.jpg | William Henry Jackson | Public domain |
| /images/trails/bear-lake-trail.jpg | Cloudy morning at bear lake (37317249226).jpg | Christian Collins | CC BY-SA 2.0 |
| /images/trails/conundrum-hot-springs.jpg | Conundrum Hike (4955444662).jpg | Zach Dischner | CC BY 2.0 |
| /images/trails/american-lake-trail.jpg | Sloan Lake View from American Basin Trail.jpg | OakleyOriginals | CC BY 2.0 |
| /images/trails/north-table-mountain-loop.jpg | 18 Road and Kokopelli Loops Trails in Colorado (20752484399).jpg | mypubliclands | Public domain |
| /images/trails/lily-lake-trail.jpg | Glacier Lily - Flickr - brewbooks.jpg | brewbooks from near Seattle, USA | CC BY-SA 2.0 |
| /images/trails/roxborough-fountain-valley-trail.jpg | Fountain Valley Trail Roxborough SP.JPG | Footwarrior | CC BY-SA 4.0 |
| /images/trails/castlewood-canyon-dam-ruins.jpg | Castlewood Dam Trails.jpg | Zenhaus | CC BY 3.0 |
| /images/trails/pueblo-mountain-park-trail.jpg | Carhart Trail west trailhead.JPG | Jeffrey Beall | CC BY 4.0 |
| /images/trails/four-pass-loop.jpg | -TravelTuesday with My Public Lands (24212151492).jpg | mypubliclands | Public domain |
| /images/trails/pitkin-lake-trail.jpg | Trail over Alpine Pass, by Jackson, William Henry, 1843-1942.png | Jackson, William Henry, 1843-1942 -- Photographer | Public domain |
| /images/trails/gore-lake-trail.jpg | Rocky Mountain National Park 03.jpg | Niagara66 | CC BY-SA 4.0 |
| /images/trails/anthracite-pass-trail.jpg | Aspen trees, Somerset County, Colorado.jpg | JPGoldberg | CC BY-SA 4.0 |
| /images/trails/mount-falcon-castle-trail.jpg | Parmalee Trail @ Castle Trail 2016-07-12 960.jpg | Chris Light | CC BY-SA 4.0 |
| /images/trails/greyrock-mountain-trail.jpg | Poudre Canyon, Greyrock trail.jpg | Charles Willgren from Fort Collins, Colorado, United States | CC BY 2.0 |
| /images/trails/hermosa-creek-trail.jpg | Indian Trail Ridge, La Plata and Montezuma counties, Colorado, USA 02.jpg | John Sowell | CC BY-SA 4.0 |
License summary
- CC0 / Public Domain: free to use without attribution (we credit anyway).
- CC BY 2.0 / 3.0 / 4.0: free to use with attribution.
- CC BY-SA 2.0 / 3.0 / 4.0: free to use with attribution; derivatives must use the same license.
If you're the photographer of any image used here and have concerns about attribution or use, email hello@coloradounited.com and we'll address it promptly.