The Rocky Mountain Arsenal was a United States chemical weapons manufacturing center located in the Denver Metropolitan Area in Commerce City, Colorado.The site was completed December 1942, operated by the United States Army throughout the later 20th century and was controversial among local residents until its closure in 1992. The Lakes Loop Trail at the Rocky Mountain Arsenal Wildlife Refuge is a 1.7 mile loop that winds along the shores of two lakes in the park, Lake Mary and Lake Ladora. Take a closer look at the Refuge before your visit by watching our short video. Visit the Refuge! figure 1, the Arsenal well is located in a region of the subcrop of Cambro-Ordovician rocks, near the area where these rocks are truncated by Pennsylvanian sediments. From Mapcarta, the free map. Click the map and drag to move the map around. There are maps at the visitor center (maps outside as center is closed due to COVID). The Rocky Mountain Arsenal was placed on the National Priorities List of Superfund sites in July 1987. Zoom in to see details. Hours: Daily from sunrise to sunset (closed on Thanksgiving, Christmas and New Year's Day). It's free and a great way to enjoy the sights and sounds of the Refuge. It was also helpful that the location was close to Stapleton airfield, a major transportation hub. Bring your phone or camera and take amazing photos of wildlife, use your phone and connect with iNaturalist, and try one of our nature scavenger hunts with your kids. Start the New Year with new Refuge visitor opportunities! CNN Special Assignment investigation of the Rocky Mountain Arsenal, Colorado. The app includes timeline information, an interactive map, and historic images of the facilities. Figure 1 is a structural map of a portion of the Denver-Julesburg Basin in the vicinity of the Rocky Mountain Arsenal well after Anderman and Ackman (1963). Historic American Engineering Record, C. (1968) Rocky Mountain Arsenal, Carpenter-Hobby-Auto Shop, 860 feet North of Sixth Avenue; 430 feet West of B Street, Commerce City, Adams County, CO. Adams County Colorado Commerce City, 1968. Rocky Mountain Arsenal National Wildlife Refuge (NWR), located 10 minutes from downtown Denver, is nearly 17,000 acres, making it one of the largest urban wildlife refuges in the United States. The U.S. Army constructed the Arsenal in 1942 to develop chemical weapons as a deterrent against the Axis Powers. Trail maps are available at the main entrance and by clicking on the link below. NPL Partial Site Deletion Area Map for Rocky Mountain Arsenal (USARMY) Central and Eastern Surface Areas of OU3 and the Surface Media of OU4 (PDF) (1 p, 209 K, About PDF) The land was farmed until World War II, then in 1942, the U.S. Army bought thirty square miles and established a chemical weapons factory. The Rocky Mountain Arsenal National Wildlife Refuge is a 15,988-acre (64.70 km 2) National Wildlife Refuge located adjacent to Commerce City, Colorado, in the United States.It is approximately 8 miles (13 km) northeast of downtown Denver.The refuge is on the grounds of the former Rocky Mountain Arsenal, a United States Army chemical weapons manufacturing facility. This center was a history museum level. The new trail system also includes three perimeter parking lots for easy trail access. Due to its proximity to Denver, one of the Refuge's primary goals is to provide environmental education programs for urban … In 1942, the US Army acquired 19,915 acres (80.59 km²) of land on which to manufacture weapons in support of World War II military activities at a cost of $62,415… About the Complex. Colorado Front Range National Wildlife Refuge Complex. 22.2 Miles 35.6 KM Loop. The Rocky Mountain Arsenal National Wildlife Refuge is one of the nation's largest urban wildlife preserves. 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