Water Canyon, north of Hildale, UT. From what I can determine, this is just the second Utah Black Spleewort record outside of Zion National Park.
Refrigerator Canyon, Zion National Park
Bridal Veil Falls Provincial Park, BC, Canada
On limestone. Bridal Veil Falls Provincial Park, BC, Canada
I posted this twice. Once for the acorn woodpecker granary and once for the actual tree itself.