Glacier lillies near Cameron Pass in mid-June. This beautiful flower starts growing up through the snow and is usually ready to bloom within days of the snow melting around it (hence, the name).
Scout Lake, Colorado, early October 2009. Apparently, this is the 5th largest beaver pond in Colorado. As I camped out here the night before, I was awakened every so often by a loud "thwack" of a beaver tail on the water. By morning, the temperature was just 5F and most of the pond had frozen. No more thwacking.
The base of Narada Falls, in Mt. Rainier National Park, Washington.