Energy & environment · 04/09/2012Updated: 10/17/2026 · 1 min read
Special Regulations; Areas of the National Park System, Yellowstone National Park
Summary
The National Park Service proposes to retain existing regulations for winter visitation and recreational activities in Yellowstone National Park for the 2012-2013 winter season, including air and sound emissions requirements for snowmobiles, daily entry limits, and restrictions on off-designated routes.
Original source language: Federal Register — Interior DepartmentOpen original release →