Environmental groups have tried several unsuccessful legal maneuvers to prevent Rocky Flats from opening to the public.
Rocky Mountain Arsenal
Three decades ago black-footed ferrets were almost extinct. Now, a captive breeding program in Northern Colorado is showing promise.
The herd of 89 bison at the Rocky Mountain Arsenal is thriving, but 15 of the youngest won't return as part of the round up.
- The U.S. Fish and Wildlife Service plans to turn 30 ferrets loose there Monday.Read more
- Plans include more than 90 miles of trails and seven miles of road available for wildlife viewing.Read more
- Refuge managers say prescribed burns invigorate the growth of prairie vegetation, control weeds and reduce the risk of wildfires.Read more