Even by Utah standards, few things are as beautiful as snow on redrock, especially in Zion Canyon where visitors can take in this lovely sight this week in the stillness of winter â if they can get there. It may be the middle of the âoffseason,â but the canyon, the centerpiece of Zion National Park, has been so packed since Christmas that park officials have had to exclude tour buses and oversized vehicles and close the canyon road because no more vehicles can fit in the parking areas.