Yosemite National Park: Throughout the Sierra Nevada, high flat plateaus are found at elevations around twelve and thirteen thousand feet. These isolated sky islands are the home to unique plant communities that are found nowhere else.

Yosemite National Park: From foothill elevations to high mountain peaks, hundreds of flower species are found throughout Yosemite National Park. Rangers and scientists discuss the rich botanical history and some of the rare plants found here.

Valley Forge NH Park: Discover the history of meadows at Valley Forge by listening to this audio file.