Across the National Park System many changes are expected from climate change, from more wildfires and vanishing glaciers to invasions of non-native species and flight of long-term residents. Writer/photographer Michael Lanza, concerned that today's park landscapes will change significantly by the time his young kids are his age, has been touring the park system with his family to show his children what they might miss later in life.

A review of how Congress acted on wilderness legislation shows that the National Park System benefited quite nicely during the 111th session, but it could have fared better.

'Tis is the season for counting birds as the 111th annual Christmas Bird Count rolls out across the country, and more than a few national parks are welcoming you to count birds.

Winter long has been regarded as the slow season for national park visits, and that's a good thing if you prefer to have the parks to yourself. With most travelers confined by school schedules to the summer months, and many convinced winter is a bad time to be outdoors, you can savor the best of the parks from coast to coast in winter. Here are some snapshots of wintry fun in the parks that bear that out.