Golden Gate Canyon is in the northwestern region of Yellowstone National Park in the U.S. state of Wyoming.

The northern portion of the Grand Loop Road traverses the canyon, connecting Mammoth Hot Springs with park features to the south.

[3] The work included a wooden trestle where a cliff face precluded grading.

[4] In 1900 the viaduct was rebuilt as a concrete structure under the supervision of Captain Hiram M. Chittenden.

Chittenden's viaduct was replaced in turn in 1930–34, the outcome of a program to widen the road.