Clouded sulfur? Mormon fritillary? Hoary comma? I had never heard of such intriguing creatures before last month, but the Rocky Mountain BioBlitz put me in close proximity to all three. No fear factor or injuries sustained. Just a stroll in a sub-alpine meadow in an effort to inventory butterflies.

Solar energy is one key to sating the United States' energy appetite, but federal officials need to be careful not to overly impact national parks and other public lands when it comes to siting these facilities.

Indiana Dunes National Lakeshore officials are crafting a plan to battle the erosion of their beaches.

Come fall in Pennsylvania the hardwood forests glow orange, red, and yellow as the air takes on a crispness that blankets the Poconos with the smells of autumn. Board one of Steamtown National Historic Site's special fall excursion runs through this brilliant countryside and you can feast your eyes on the colors of the season in the comfort of a coach.