Classified for credit

Ranger-guided tour of a preserved Ancestral Puebloan cliff dwelling at Mesa Verde — covers Native American history and archaeology.

Ancestral Puebloan cliff dwelling in Mesa Verde NNP with ranger-led tours — covers pre-Columbian history, archaeology, and Southwest Native cultures.

Narrow-gauge heritage railroad through the San Juan Mountains — covers railroad history, westward expansion, and high-altitude Rocky Mountain geography.

Historic narrow-gauge steam railroad running through the San Juan Mountains — covers railroad engineering history, Colorado mining era, and mountain geography.

Narrow-gauge heritage railroad with gold/silver mine tour — covers Colorado mining history, ore extraction, and 19th-century industrial technology.

UNESCO World Heritage cliff dwellings — covers Ancestral Puebloan archaeology, Southwest Native American history, and cultural geography.

Ancestral Puebloan cliff dwellings at a UNESCO World Heritage Site — covers pre-Columbian archaeology, Native American history, and Colorado Plateau geography.

Reconstructed 1840s adobe fur-trade fort on the Santa Fe Trail with living-history interpreters covering westward expansion, trade economy, and Plains cultures.

Reconstructed 1840s adobe fur-trade fort on the Santa Fe Trail — mountain man culture, westward expansion, and US–Mexico trade history.

Hand-built stone castle constructed by one man over decades — covers folk architecture, self-reliance, and the history of the American DIY tradition.

NPS-affiliated visitor center interpreting the largest concentration of Ancestral Puebloan archaeological sites in the U.S. — covers pre-Columbian history and Southwest archaeology.

Living-history village spanning 1860s–1920s Colorado — covers pioneer settlement, social history, and period trades.

Outdoor railroad museum with 100+ historic locomotives and cars — covers railroad history, steam and diesel engineering, and the role of rail in Western expansion.

Living-history orchard and farm site depicting early 20th-century Colorado agricultural practices, irrigation, and rural community life.

Narrow-gauge heritage railroad through the Rocky Mountains — covers 19th-century mining-era history, railroad engineering, and Colorado geography.

Outdoor living-history park in Golden depicting Colorado frontier life — supports 19th-century Western settlement history and pioneer social studies.

Colorado's flagship state history museum with interactive exhibits spanning Native cultures, frontier settlement, and 20th-century Colorado.

Ancestral Puebloan tower and cliff-dwelling ruins on the Utah-Colorado border — covers pre-Columbian archaeology and Native American architecture.

Living-history museum with two working farm sites spanning 1860–1890 Colorado settlement — covers pioneer agriculture, community life, and local regional history.

NPS park commemorating Manhattan Project sites — covers WWII history, nuclear physics development, and the ethics of science in wartime.

Reconstructed Ancestral Puebloan cliff dwellings at Manitou Springs — covers pre-Columbian Southwest archaeology, architecture, and Native American culture.

Outdoor living-history museum of Western Colorado pioneer life — covers settlement, ranching, and mining history of the Mountain West.

Museum dedicated to WWII aviation with restored aircraft covering military history, aeronautical engineering, and the industrial home front.

Outdoor and indoor aircraft collection at Pueblo Airport covering military aviation history from WWII through the jet age — supports aerospace history and aerodynamics.