He probably knew that Basque sheepherders did the same thing across the southern part of the state. It’s a way to say “I was here.”
The Basques left initials and dates in the tree bark, but often added their hometown, images of churches, and other figures.
The three arboglyph photos shown are in the Basque Museum in Boise, which is well worth the hour you’ll spend there next time you’re in town.
#idahohistory #basquehistory #arboglyph