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A t-storm around in the p.m.
of sunlight, then sets at
of moolight, then sets at
Yellowstone National Park's Firehole Lake Drive was closed Thursday, July 10, as portions of the roadway's asphalt melted amid the summer's recent heat wave in the Northwest. more >
Sep 20, 2011; 5:00 AM ET
Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?