With the help of fellow student and roommate Loryn Zachariasen, right, University of Wisconsin-Whitewater student Brittany Saylor reads from her field journal at Midway Geyser Basin in Yellowstone National Park.
From left, Brittany Saylor, Casey Stark and Megan Lynch from the University of Wisconsin-Whitewater spent Thursday in Yellowstone National Park as part of a college course on the park's thermal features.
YELLOWSTONE NATIONAL PARK, Wyo. — The humidity jumped to tropical levels when the wind shifted and the steam from Excelsior Geyser washed over the boardwalk.
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