In addition to Rocky Mountain National Park, I also liked to go to Arapaho National Wildlife Refuge. It is a longer drive from Boulder, especially when the pass across the National Park is closed due to snow. The 23,464-acre wildlife refuge was established to provide suitable nesting and rearing habitat for migratory birds. Spring is a great time to visit as the migrating birds arrive when the snow in the wetlands is melting. There were a lot of birds, some I could identify and others that I need to identify. There are also a lot of prairie dogs.