Hikes›United States›Colorado›Rocky Mountain Arsenal National Wildlife Refuge›Discovery TrailDiscovery TrailDay hike · 4.9 km · ↑ 0 mIn Rocky Mountain Arsenal National Wildlife Refuge, ColoradoMore about Discovery Trail (2)April Trail of the Monthrewinterpark.com · Apr 2016 · trip reportgjhikes.com: Discovery Trailgjhikes.com · Aug 2010 · trip report