Classified for credit

Gondola ride over Cheyenne Mountain Zoo grounds — supplements zoo visit with geographic perspective on Rocky Mountain habitat zones.

Public dark-sky observatory in Westcliffe, CO offering telescope viewing and astronomy programming in a designated dark-sky region.

University of Colorado research observatory open for public viewing — telescope optics, observational astronomy, and astrophysics.

South Park rail and Como roundhouse preservation site covering Colorado narrow-gauge railroad history and steam-era engineering.

Urban nature park with staffed nature center on the South Platte River — covers riparian ecology, bird identification, and local watershed biology.

Space-themed gallery and exhibit annex in Denver — covers aerospace history and space exploration science as a curriculum supplement.

High-altitude Colorado state park on the South Platte River — supports cold-water fishery ecology, riparian biology, and mountain geography.

Well-preserved Colorado silver-boom ghost town with original 1880s structures — covers mining-era history and westward expansion.

Colorado state park along the St. Vrain Creek with wetland and riparian habitat — supports Front Range ecology, bird identification, and water-cycle curriculum.

City reservoir nature center offering programming on local wildlife, wetland ecology, and Colorado native species identification.

Regional park and wildlife refuge around a reservoir — waterfowl habitat, raptor observation, and Front Range ecology.

Amateur astronomy research observatory open for public programs — covers telescope optics, celestial mechanics, and observational astronomy.

Public observatory in Fort Collins offering telescope viewing and astronomy programs — covers optics, stellar classification, and dark-sky science.

Visitor and nature center at the gateway to Cheyenne Canyon — features ranger programs on Pikes Peak region ecology, geology, and native species.

Colorado high-altitude state forest park with camping, wildlife, and ranger programs — covers montane ecology, wildlife biology, and Rocky Mountain geography.

Regional art museum in Steamboat Springs — supports visual-arts curriculum through rotating exhibits focused on Western and contemporary art.

High-altitude Colorado state park with reservoir — covers Rocky Mountain ecology, watershed geography, and outdoor recreation science.

Western Colorado state park with a freshwater lake and riparian habitat — supports aquatic ecology, bird study, and outdoor PE.

Colorado Springs Fine Arts Center collection emphasizing American Western and Latino art — art history and visual analysis.

Museum and grave site of William F. Cody on Lookout Mountain — covers American frontier history, Wild West showmanship, and westward expansion.

University geology museum with mineral, rock, and fossil collections tied to mining engineering — covers earth science, mineralogy, and geological history.

Community botanical garden with demonstration beds and native plant collections — covers plant biology, horticulture, and regional ecology.

Historic Colorado silver mine and mill site in Breckenridge — covers hard-rock mining techniques, ore processing, and Colorado mining history.

Federal Reserve branch money museum covering U.S. monetary history, currency design, economics, and how the banking system works.