Yellowstone / Grand Teton Pks April 15th
To those in the know: On our way to Alaska from AZ and will be in the YS / GT park area last two weeks of April 2015. We were wondering if it is too early for campgrounds to be open or too early for s...
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YNP roads will not be open to cars that early in the season, unless our current mild spell continues unabated until then. Even with warmer than usual temperatures, park roads still have several feet of packed-down snow on them, and only snowcoaches and snowmobiles are allowed on them. That is likely to be true until early May. As noted, Mammoth CG may be open, as the road from the park's north entrance to Cooke City, via Mammoth, is kept open all year regardless of snowfall.
