Snow
A Sierra Observer's Snowpit Notebook
Across fourteen winters of fieldwork above Mammoth Lakes, an independent observer named Caleb Yost has filled forty-two notebooks with snow profiles, instability tests, and what they meant.
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Snow
Across fourteen winters of fieldwork above Mammoth Lakes, an independent observer named Caleb Yost has filled forty-two notebooks with snow profiles, instability tests, and what they meant.
Snow
From the Utah Avalanche Center's Salt Lake office, four forecasters spent the 2025-26 season explaining a snowpack that refused to settle.