The BLM's Royal Gorge Field Office manages many cultural resources including sites, features, and artifacts ranging in age from as old as 12,000 years to only 50 years. The cultural resources are located on BLM-administered land from the Continental Divide to the borders of Wyoming, Nebraska, Kansas, Oklahoma and New Mexico.
Most sites date to the historic era (1860s - 1920s). Several historic mining districts still contain many scattered parcels of BLM-administered land. These historic mining districts are near Cripple Creek, Leadville, Querida (Westcliffe/Silvercliff), Central City/Black Hawk, and west of Boulder. Historic trails, homesteads, ranches, ditches, and reservoirs, as well as a variety of other properties, are also managed by the BLM.
Aboriginal sites range in age from the Paleo-Indian stage through the Protohistoric. Because many of the Native Americans living in this part of Colorado were not sedentary, there is no evidence of large settlements. Rather, the archaeological data are often found in very low densities, and usually consist of chipped stone, faunal remains, ground stone, and very rarely, pottery.
Sacred locations important to Native Americans are also found on BLM lands. The BLM regularly consults with nearly twenty tribes that either still live in Colorado or occupied the Eastern Plains at some time in their history, and now live in states such as Montana, Wyoming, North Dakota, South Dakota and Oklahoma.