30.0 MB (7.0 MB compressed)
3653 x 2870 pixels
31.0 x 24.4 cm ⏐ 12.2 x 9.6 in (300dpi)
OXFORD SCIENCE ARCHIVE / HERITAGE IMAGES / SCIENCE PHOTO LIBRARY OXFORD SCIENCE ARCHIVE / HERITAGE IMAGES / SCIENCE PHOTO LIBRARY
Wooden trestle bridge on the Union Pacific Railroad, Dale Creek, Wyoming, USA, 1869. At 150 feet in height, the Dale Creek trestle bridge was the highest on the Union Pacific. All the timber used in the construction of the bridge had to be hauled 1000 miles from Chicago. In 1876 it was replaced with an iron structure.
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