NABSQNO 13S-386810-3961090An unnamed irregular natural arch in Los Alamos County, New Mexico Photo by Jay Wilbur NABSQNO 13S-386810-3961090. This unnamed irregular natural arch has eroded through a tent rock of volcanic tuff. It is located along highway 4 southwest of White Rock, Los Alamos County, New Mexico. Although small, it is quite photogenic and has graced many brochures advertising the scenic qualities of the area.
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