View Original: | The_Old_Z,_or_a_portion_of_the_track_at_the_head_of_Echo_before_the_completion_of_the_tunnel._Summit_County,_Utah._1869.jpg (7100x3824) | |||
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Keywords: stereoscopic stereophotography stereophotographs historical usgs history geology mapping black and white blackandwhite bnw stereograph blackandwhite monochrome outdoor black and white The Old Z, or a portion of the track at the head of Echo before the completion of the tunnel. Summit County, Utah. 1869 The Old Z, or a portion of the track at the head of Echo before the completion of the tunnel. Summit County, Utah. 1869 |