Messing with Maps: San Juan Canyon Country edition

And a scorching deal for sizzling days: 20% off yearly paid subs until the Summer Solstice

I’m usually not all that big on geologic maps, perhaps because I don’t understand them, or maybe because I have such a hard time matching what the map portrays with what I see when I’m walking through the place. So I almost just passed this one by. But after a closer inspection, I got drawn in — probably in spite of, rather than due to, the geological p…