U.S. Geological Survey:
DSC_0001
U.S. Geological Survey:
DSC_0002
U.S. Geological Survey:
DSC_0006
U.S. Geological Survey:
DSC_0007
U.S. Geological Survey:
DSC_0009
U.S. Geological Survey:
DSC_0010
U.S. Geological Survey:
DSC_0021
U.S. Geological Survey:
DSC_0041
U.S. Geological Survey:
DSC_0022
U.S. Geological Survey:
_DSC8102
U.S. Geological Survey:
_DSC8126
U.S. Geological Survey:
_DSC8142
U.S. Geological Survey:
_DSC8158
U.S. Geological Survey:
_DSC8228
U.S. Geological Survey:
_DSC8235
U.S. Geological Survey:
_DSC8241
U.S. Geological Survey:
_DSC8250
U.S. Geological Survey:
_DSC8255
U.S. Geological Survey:
_DSC8257
U.S. Geological Survey:
_DSC8260
U.S. Geological Survey:
_DSC8263
U.S. Geological Survey:
_DSC8269
U.S. Geological Survey:
_DSC8274
U.S. Geological Survey:
_DSC8281
U.S. Geological Survey:
_DSC8283
U.S. Geological Survey:
_DSC8289
U.S. Geological Survey:
_DSC8300
U.S. Geological Survey:
_DSC8305
U.S. Geological Survey:
_DSC8311
U.S. Geological Survey:
_DSC8315