A few articles have been published here and there about the Spearhead Backcountry Atlas. Follow the links below to read more about the Atlas.
Creating the Spearhead Backcountry Atlas and Field Guide with Matt Gunn
https://snowbrains.com/how-backcountry-ski-guidebooks-get-written1/
How Backcountry Ski Guidebooks Get Written
https://backcountrymagazine.com/stories/seven-outdoor-books-to-add-to-your-library/
Seven Outdoor Books to Add to Your Library
https://www.piquenewsmagazine.com/must-reads/spearhead-backcountry-atlas-aims-to-inspire-3210816