Mike Cox, of California, fishes on Yellowstone Lake in Yellowstone National Park. The park is known for its great fishing. Of the 3 million people who visit Yellowstone National Park each year, some 50,000 people fish.
Fly fishermen cast into the Firehole River in Yellowstone National Park.
The Lamar Buffalo Ranch was once a ranger outpost in Yellowstone National Park.
In September of 1992, Yellowstone National park permitted a team of scientists to lower a camera probe into the vent of Old Faithful in order to learn more about the geyser's behavior. This is their footage, narrated by James A. Westphal. View the full report, "In situ observations of Old Faithful Geyser: Geology, v. 25" at http://bit.ly/1p3GwFd (PDF document).