[ 2] Landmark name Image Date designated[ 3] Location County Description 1 Bent's Old Fort Bent's Old Fort December 19, 1960 (#66000254 ) La Junta 38°02′23″N 103°25′36″W / 38.0397748°N 103.4266500°W / 38.0397748; -103.4266500 (Bent's Old Fort ) Otero Adobe fort built in 1833 to trade with Plains Indians and trappers, on Santa Fe Trail 2 Central City/Black Hawk Historic District Central City/Black Hawk Historic District July 4, 1961 (#66000246 ) Central City and Black Hawk 39°48′04″N 105°30′47″W / 39.8010090°N 105.5130620°W / 39.8010090; -105.5130620 (Central City/Black Hawk Historic District ) Gilpin Former gold mining camps in the Front Range of the Rocky Mountains, once known as the 'Richest Square Mile on Earth 3 Colorado Chautauqua Colorado Chautauqua February 10, 2006 (#78000830 ) Boulder 39°59′54″N 105°16′49″W / 39.9983190°N 105.2802682°W / 39.9983190; -105.2802682 (Colorado Chautauqua ) Boulder This 1898 Chautauqua is the only one West of the Mississippi, one of only four continuously operating since its inception, and the only one open year round. 4 Colorado Fuel and Iron Company Administration Complex (Minnequa Steel Works) Colorado Fuel and Iron Company Administration Complex January 13, 2021 (#100006242 ) 215 and 225 Canal St. 38°14′17″N 104°36′46″W / 38.23804°N 104.61287°W / 38.23804; -104.61287 (Colorado Fuel and Iron Company Administration Complex ) Pueblo First major steel works west of the Mississippi. 5 Cripple Creek Historic District Cripple Creek Historic District July 4, 1961 (#66000939 ) Cripple Creek 38°44′48″N 105°10′31″W / 38.7467790°N 105.1753060°W / 38.7467790; -105.1753060 (Cripple Creek Historic District ) Teller The gold mining town of Cripple Creek and the surrounding hills 6 Cumbres & Toltec Scenic Railroad Cumbres & Toltec Scenic Railroad October 16, 2012 (#73000462 ) Antonito, CO and Chama, NM 37°04′11″N 106°00′43″W / 37.06972°N 106.01202°W / 37.06972; -106.01202 (Cumbres & Toltec Scenic Railroad ) Conejos, CO , Archuleta, CO , and Rio Arriba, NM Longest & most complete representation of late nineteenth- and early twentieth-century railroading. 7 Denver Civic Center Denver Civic Center October 16, 2012 (#12001017 ) Denver 39°44′21″N 104°59′20″W / 39.7391667°N 104.9888889°W / 39.7391667; -104.9888889 (Denver Civic Center ) Denver City Beautiful -era civic center. 8 Durango & Silverton Narrow Gauge Railroad Durango & Silverton Narrow Gauge Railroad July 4, 1961 (#66000247 ) Durango to Silverton 37°16′09″N 107°52′57″W / 37.26912°N 107.88253°W / 37.26912; -107.88253 (Durango & Silverton Narrow Gauge Railroad ) La Plata and San Juan Narrow gauge mining railroad which has continued to serve as a tourist line between Durango and Silverton 9 Georgetown-Silver Plume Historic District Georgetown-Silver Plume Historic District November 13, 1966 (#66000243 ) Georgetown and Silver Plume 39°42′22″N 105°41′51″W / 39.7060984°N 105.6975041°W / 39.7060984; -105.6975041 (Georgetown-Silver Plume Historic District ) Clear Creek Historic district which includes the silver mining towns of Georgetown and Silver Plume as well as the 1884 railway engineering marvel which connects them, the Georgetown Loop Railroad . 10 Granada Relocation Center (Amache National Historic Site) Granada Relocation Center February 10, 2006 (#94000425 ) Granada 38°02′55″N 102°19′42″W / 38.0486203°N 102.3282454°W / 38.0486203; -102.3282454 (Granada Relocation Center ) Prowers World War II Japanese American internment center 11 Leadville Historic District Leadville Historic District July 4, 1961 (#66000248 ) Leadville 39°14′50″N 106°17′29″W / 39.2472900°N 106.2913170°W / 39.2472900; -106.2913170 (Leadville Historic District ) Lake Historic Leadville, Colorado mining district and village area 12 Lindenmeier site Lindenmeier site January 20, 1961 (#66000249 ) Norfolk 40°58′48″N 105°03′44″W / 40.979898°N 105.062256°W / 40.979898; -105.062256 (Lindenmeier site ) Larimer The only extensive Folsom culture campsite yet found with artifacts dating from approximately 11200 BCE to 3000 BCE. 13 Lowry Ruin Lowry Ruin July 19, 1964 (#66000253 ) Pleasant View 37°35′05″N 108°55′13″W / 37.58469°N 108.92017°W / 37.58469; -108.92017 (Lowry Ruin ) Montezuma Ancestral Puebloan archaeological site from 1060 with a very large kiva 14 Ludlow Tent Colony Site Ludlow Tent Colony Site January 16, 2009 (#85001328 ) Ludlow 37°20′21″N 104°35′02″W / 37.3392453°N 104.5837849°W / 37.3392453; -104.5837849 (Ludlow Tent Colony Site ) Las Animas Site of 1914 miners' strike that culminated in Ludlow Massacre 15 Mesa Verde Administrative District Mesa Verde Administrative District May 29, 1987 (#87001410 ) Mesa Verde National Park 37°11′03″N 108°29′17″W / 37.1841624°N 108.4881439°W / 37.1841624; -108.4881439 (Mesa Verde Administrative District ) Montezuma First buildings built by the National Park Service with intent to reflect cultural traditions in the park area, built in 1921 16 Philadelphia Toboggan Company Carousel #6 (Burlington Carousel) Philadelphia Toboggan Company Carousel #6 February 27, 1987 (#78000861 ) Burlington 39°18′33″N 102°16′14″W / 39.3090670°N 102.2706890°W / 39.3090670; -102.2706890 (Philadelphia Toboggan Company Carousel #6 ) Kit Carson Carousel built for Elitch Gardens in 1905. In 1928 it moved to Kit Carson County fairgrounds where it remains open today. It is the only antique carousel in America retaining its original paint on both the scenery panels and the animals, and it is the only surviving Philadelphia Toboggan Company menagerie carousel. 17 Pikes Peak Pikes Peak July 4, 1961 (#66000245 ) Colorado Springs 38°50′26″N 105°02′42″W / 38.8405839°N 105.0449035°W / 38.8405839; -105.0449035 (Pikes Peak ) El Paso Pike's Peak (everything above 14,000 feet (4,300 m) elevation). This mountain was inspiration for "America the Beautiful " as well as the motto "Pike's Peak or Bust " 18 Pike's Stockade Pike's Stockade July 4, 1961 (#66000244 ) Sanford 37°17′37″N 105°48′37″W / 37.2936205°N 105.8102975°W / 37.2936205; -105.8102975 (Pike's Stockade ) Conejos Explorer Zebulon Pike set up a fort here. 19 Raton Pass Raton Pass December 19, 1960 (#66000474 ) Trinidad, CO and Raton, NM 36°59′28″N 104°29′12″W / 36.9911344°N 104.4866544°W / 36.9911344; -104.4866544 (Raton Pass ) Las Animas, CO and Colfax, NM Mountain pass between New Mexico and Colorado 20 Red Rocks Park and Mount Morrison Civilian Conservation Corps Camp Red Rocks Park and Mount Morrison Civilian Conservation Corps Camp August 4, 2015 (#90000725 ) Morrison, CO 39°39′56″N 105°12′21″W / 39.6655433°N 105.2058221°W / 39.6655433; -105.2058221 (Red Rocks Park and Mount Morrison Civilian Conservation Corps Camp ) Jefferson Denver Mountain Park and camp where workers stayed while building the park's amphitheater. 21 Rocky Mountain National Park Administration Building (Beaver Meadows Visitor Center) Rocky Mountain National Park Administration Building January 3, 2001 (#01000069 ) Estes Park 40°21′59″N 105°33′40″W / 40.3662840°N 105.5610180°W / 40.3662840; -105.5610180 (Rocky Mountain National Park Administration Building ) Larimer Also known as the Beaver Meadows Visitor Center, it was designed by Taliesin Associated Architects , their first major work after Frank Lloyd Wright had died. It demonstrated how modern architecture could be successful inside the National Parks and was the last significant project in Mission 66 . 22 Shenandoah-Dives (Mayflower) Mill Shenandoah-Dives (Mayflower) Mill February 16, 2000 (#00000262 ) Silverton 37°49′44″N 107°37′39″W / 37.8288855°N 107.6275605°W / 37.8288855; -107.6275605 (Shenandoah-Dives (Mayflower) Mill ) San Juan Only surviving example of a selective flotation mill in Colorado. 23 Silverton Historic District Silverton Historic District July 4, 1961 (#66000255 ) Silverton 37°48′46″N 107°39′46″W / 37.8128640°N 107.6627670°W / 37.8128640; -107.6627670 (Silverton Historic District ) San Juan Former silver mining town, home of the Shenandoah-Dives (Mayflower) Mill and one end of the Durango-Silverton Narrow-Gauge Railroad 24 Telluride Historic District Telluride Historic District July 4, 1961 (#66000256 ) Telluride 37°56′15″N 107°48′45″W / 37.9375170°N 107.8124040°W / 37.9375170; -107.8124040 (Telluride Historic District ) San Miguel Former gold mining boomtown, it is now an artistic retreat and a ski resort town 25 Temple Aaron Temple Aaron December 11, 2023 (#100009802 ) Trinidad 37°09′59″N 104°30′10″W / 37.16637°N 104.50285°W / 37.16637; -104.50285 (Temple Aaron ) Las Animas One of the oldest synagogues in Colorado 26 Trujillo Homesteads Trujillo Homesteads February 1, 2012 (#03001544 ) Mosca 37°44′02″N 105°44′11″W / 37.73382°N 105.73636°W / 37.73382; -105.73636 (Trujillo Homesteads ) Alamosa Early ranch settlement (1880s) in the San Luis Valley, with a surviving period ranch house; located on a Nature Conservancy property near Great Sand Dunes National Park . 27 United States Air Force Academy, Cadet Area United States Air Force Academy, Cadet Area April 1, 2004 (#04000484 ) Colorado Springs 39°00′31″N 104°53′25″W / 39.0086350°N 104.8902880°W / 39.0086350; -104.8902880 (United States Air Force Academy, Cadet Area ) El Paso Bold use of Modern architecture at the United States Air Force Academy , especially with the Cadet Chapel 28 Winks Panorama Winks Panorama December 13, 2023 (#100009805 ) Pinecliffe 39°55′16″N 105°27′25″W / 39.92111°N 105.45694°W / 39.92111; -105.45694 (Winks Panorama ) Gilpin Hotel that catered to African-American tourists during the early and middle 20th century