Non-native species that arrive in the Great Lakes via ballast waters are a substantial threat to the native fisheries in the lakes. At Isle Royale National Park, officials are implementing regulations with hopes they'll reduce the numbers of non-natives that infiltrate Lake Superior.

Local opposition to a proposed doubling in entrance fees at Crater Lake National Park apparently has worked.

Imagine taking the time to go into your backyard, or the nearby woods, or even a pond close to your home, to catalog all the life you found in it. Not just the deer or snakes or fish, but the birds and insects, reptiles, plants and fungi and everything else biological or botanic. Imagine how fascinating that would be. At Great Smoky Mountains National Park they've been working on just that, and what they've found has been incredible.

St. Louis wants to revitalize its waterfront area. A former senator has a plan, but the development of new attractions would have to be done on land currently managed by the National Park Service. The city wants the land back, but there isn't a lot of support for that idea outside of Missouri.