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About Fremont County
Beginning in the northeast corner of the Snake River Basin, and reaching up into the mountains of the continental divide, Fremont County includes a rich farmland and many miles of forests and mountains. It is bordered on the east by Wyoming, with a bit of Yellowstone National Park reaching into it, and by Montana on the north. The volcanic peaks along the continental divide reach to 10,000 feet, and in the Snake River Basin, the elevations are above 5,000 feet. Evidence of large lava flows can be seen throughout the northern part of the county.
Henry's Lake, a large natural lake, enlarged by a dam, lies in the northern tip of the county. It and the Island Park Reservoir are recreational favorites, with boating, hiking and camping opportunities.
Fremont County has a population of 11,819, as of 2000, and covers 1,896 square miles. U.S. Highway 20 crosses it from Montana on the northeast into the Snake River Basin to the southwest.