David Sumera:
Lone Mountain Trail
David Sumera:
Window Trail
David Sumera:
Window Trail
David Sumera:
Mule Ears
David Sumera:
Santa Elena Canyon
David Sumera:
Alpine, TX
David Sumera:
Bike Tree
David Sumera:
Chihuahuan Desert Research Institute
David Sumera:
Cactus Museum
David Sumera:
McDonald Observatory