Fall has reached the Rockies, and it has brought with it pastels of the season, from reds and oranges to browns and still some green. In Grand Teton National Park, the changing colors of the seasons are captured in this short video presented by the Grand Teton National Park Foundation and the Grand Teton Association.

With its densely forested landscape, Catoctin Mountain Park in Maryland doesn't easily give up its secrets. But if you have a trained eye, you can spot ancient quarries Native Americans relied on for their tools.

Much of the recent news from Yosemite National Park hasn't focused on the area's spectacular scenery, but rather on an outbreak of hantavirus pulmonary syndrome (HPS). Thus far, eight people who spent at least one night in the park this summer have been stricken, and three have died. Has this situation caused you to reconsider plans to visit Yosemite?