Alan Cressler:
Acer negundo, White Canyon, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Anasazi Granary, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Anasazi Ruin, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Anasazi Ruin, Natural Bridges National Monument, San Juan County, Utah 2
Alan Cressler:
Atlatl Panel, San Juan County, Utah 2
Alan Cressler:
Atlatl Panel, San Juan County, Utah 3
Alan Cressler:
Atlatl Panel, San Juan County, Utah 4
Alan Cressler:
Atlatl Panel, San Juan County, Utah 5
Alan Cressler:
Atlatl Panel, San Juan County, Utah 6
Alan Cressler:
Atlatl Panel, San Juan County, Utah 7
Alan Cressler:
Atlatl Panel, San Juan County, Utah 8
Alan Cressler:
Cryptobiotic soil crust, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Cryptobiotic soil crust, Natural Bridges National Monument, San Juan County, Utah 2
Alan Cressler:
Cryptobiotic soil crust, Natural Bridges National Monument, San Juan County, Utah 3
Alan Cressler:
Double Granaries, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
flash flood, White Canyon Creek, White Canyon, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
geology sign, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
historical sign, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Horse Collar Ruin, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Horse Collar Ruin, Natural Bridges National Monument, San Juan County, Utah 2
Alan Cressler:
Horse Collar Ruin, Natural Bridges National Monument, San Juan County, Utah 3
Alan Cressler:
Horse Collar Ruins Complex, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Horsecollar Ruin, White Canyon, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Kachina Bridge Ruins, bedrock metates, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Kachina Bridge Ruins, bedrock metates, Natural Bridges National Monument, San Juan County, Utah 2
Alan Cressler:
Kachina Bridge Ruins, Hand Panel, prehistoric pictographs, Natural Bridges National Monument, San Juan County, Utah 1
Alan Cressler:
Kachina Bridge Ruins, Hand Panel, prehistoric pictographs, Natural Bridges National Monument, San Juan County, Utah 2
Alan Cressler:
Kachina Bridge Ruins, Hand Panel, prehistoric pictographs, Natural Bridges National Monument, San Juan County, Utah 3
Alan Cressler:
Kachina Bridge Ruins, Natural Bridges National Monument, San Juan County, Utah 2
Alan Cressler:
Kachina Bridge Ruins, Natural Bridges National Monument, San Juan County, Utah 3
