MNN Galleries

The greenest parks in America

By: Tracy Alverson Euler on Oct. 16, 2009, 11:21 p.m.
Alpine lakes and forests in Denali National Park

Photo: Carol M. Highsmith/Wikimedia Commons [CC by 1.0]

1 of 12

The greenest parks in America

All across the country, national parks are doing their part to make environmentally friendly updates. Here are the 10 parks in the U.S. taking steps to be the greenest spaces in America.