In 1942, at the height of World War II, the U.S. Army purchased the 17,000 acres of land on which to manufacture chemical weapons, such as mustard gas, white phosphorus and napalm.

Rocky Mountain Arsenal (RMA) is located in Commerce City, Colorado, approximately 10 miles northeast of downtown Denver. About the NWRS. The above map is for general location information only and does not imply access. Colorado Front Range National Wildlife Refuge Complex . This map was created by a user. Rocky Mountain Arsenal National Wildlife Refuge was established, in part, to protect our national symbol, the bald eagle. About the Complex.

… Learn how to create your own. Rocky Mountain Arsenal National Wildlife Refuge was established, in part, to protect our national symbol, the bald eagle. For access information please check on the refuge's web page or contact the refuge directly.

Read more about the complex. Print Share Last Updated: Oct 06, 2016 All lands and boundaries depicted in the above web map are not survey quality and should not be used for survey or legal purposes.

Rocky Mountain Arsenal National Wildlife Refuge is managed as part of the Colorado Front Range National Wildlife Refuge Complex. Trail maps and a wildlife drive guide are available at the main entrance and by clicking on the link below. Many refuges have specific visitor services and other recreation opportunity maps. https://www.fws.gov/gis/data/CadastralDB/index_cadastral.html. Trail/Wildlife Drive Map. For more information go to https://www.fws.gov/gis/data/CadastralDB/index_cadastral.html.