We entered Yellowstone National Park at the southern gate on May 25, 2014. Snow banked the roadway in walls half as high as our motorhome. We passed Lake Yellowstone, looking like the ice rink at Rockefeller Center in New York City—in an immense size, of course. In my head, I said: “That will not thaw all summer!” But, by early summer, the cold and deep waters reflected clouds overhead. In Visitor Centers in Yellowstone National Park, we learned facts about the largest lake in the park, indeed: the largest lake in North America at more than 7,000 feet elevation:
1. Its vast waters cover approximately 136 square miles.
2. Yellowstone Lake is roughly 20 miles long and14 miles wide with a shoreline of 141 miles.
3. The lake’s average depth is approximately 139 feet and its deepest spot is a canyon 390 feet deep. The water stays at an average 41 degrees.