In 1909 the Wyoming State Legislature defined and set aside the boundaries of Park County.  A year later in November 1910, an election was held to determine the county seat. Competition was keen between Cody and Powell with Cody winning by a wide margin.  Records have been kept in Park County since 1911.

Yellowstone National Park

OFFICERS

  Park officials today issued a decision that they will continue to manage Sylvan Pass and keep it open for future use.  11/21/07

Wyo Delegation Applauds Sylvan Pass Decision - WASHINGTON - U.S. Senators Mike Enzi and John Barrasso and Representative Barbara Cubin, all R-Wyo., today applauded the National Park Service’s decision to keep Sylvan Pass open to snowmobiles and snow coaches.