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Abstract
 Remnants, Yellowstone NP WY |  Cascade, Barringer Crater AZ |
|---|---|
 Bent, Reelfoot Lake SP TN |  Key West FL |
 Railroad Station, Lynnville TN |  Supports, Bakersfield CA |
 Fall, Radnor Lake SP, Brentwood TN |  Saguaro NP, East Section AZ |
 Monument Interior, Gettysburg National Military Park PA |  Temple Steps, Ayutthaya, Thailand |
 Upper Geysers 1, Yellowstone NP WY |  Barn Silo, Fernvale TN |
 Natural Bridge SP VA |  Wall 1, Glacier NP MT |
 Wall 2, Glacier NP MT |  Callaway Gardens GA |
 Saguaro NP, West Section AZ |  Remnants, Yellowstone NP WY |
 Layers, Glacier NP MT |  Sukhumvit Road, Bangkok, Thailand |
 Radnor Lake SP, Brentwood TN |  Key West FL |
 Upper Geysers 2, Yellowstone NP WY |  Natural Bridge SP VA |
 Sunrise, Ste Anne Des Monts, Quebec pano |  Sunrise, Ste Anne Des Monts, Quebec |
 Key West FL |  Cape Ann, Gloucester MA |