Place and Time‎ > ‎August‎ > ‎

August 17

posted Aug 17, 2014, 5:17 AM by vfe_ai_venice.beske@wyo.gov   [ updated Aug 18, 2015, 8:13 AM by Travis Pollok ]
1870 On August 17, 1870, Ferdinand Vandeveer Hayden and his exploration party visited the Natural Bridge, now known as Ayres Natural Bridge.

1959 On August 17, 1959, an earthquake occurred at Hebgen Lake near West Yellowstone, Montana. It was a 7.5 on the Richter Scale, one of the largest  The tremors shook all of Yellowstone National Park and quite a lot of Montana, Wyoming, and Idaho.