Holbrook in Navajo County, Arizona — The American Mountains (Southwest)
Agate Bridge
Photographed by Denise Boose, September 2, 2013
1. Agate Bridge Marker
Enthusiastic visitors fascinated by Agate Bridge worked to preserve it through the establishment of Petrified Forest National Monument in 1906. Conservationists felt this ages old natural bridge needed architectural support and in 1911 erected masonry pillars beneath the log. In 1917 the present concrete span replaced the masonry work.
Current National Park Service philosophy allows the natural forces the create unusual feature to be left in its natural state. Eventually the natural forces that created Agate Bridge will cause it to fall with or without its supports. For your safety, and to help preserve the petrified log, please stay off the bridge.
Caption: Masonry pillars were added to “support” Agate Bridge in 1911.
Caption: Agate Bridge as it looked about 1900.
Erected by Petrified National Forest Services.
Topics. This historical marker is listed in this topic list: Paleontology. A significant historical year for this entry is 1906.
Location. 34° 53.559′
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Regionally, this marker is in Arizona’s Hopi. It is also in the American Southwest, in the Mountain West, in Colorado Plateau, and at the Four Corners. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Spain and also Mexicos Alta California.
Other nearby markers. At least 8 other markers are within 5 miles of this marker, measured as the crow flies: First Impressions (approx. 0.8 miles away); From Wood to Stone (approx. 2 miles away); When Crystal Forest Was a Forest (approx. 2 miles away); Pioneers of Paleontology (approx. 3.6 miles away); a different marker also named Pioneers of Paleontology (approx. 3.7 miles away); Metoposaur Genesis Supreme (approx. 4 miles away); The Funky Worm (approx. 4 miles away); Newspaper Rock Petroglyphs Archeological District (approx. 4.8 miles away). Touch for a list and map of all markers in Holbrook.
Other markers no longer nearby. Jasper Forest (was approx. 0.8 miles away but has been permanently removed); Triassic Landscape (was approx. 2 miles away but has been replaced with another marker now near it).
Photographed by Denise Boose, September 2, 2013
2. Agate Bridge Marker
Photographed by Denise Boose, September 2, 2013
3. Agate Bridge Marker
Photographed by Denise Boose, September 2, 2013
4. Agate Bridge as it looked about 1900
Photographed by Denise Boose, September 2, 2013
5. Masonry pillars were added to “support” Agate Bridge in 1911
Photographed by Denise Boose, September 2, 2013
6. Agate Bridge
Photographed by Denise Boose, September 2, 2013
7. Agate Bridge
Photographed by Haines Photo Company, circa 1908
8. Agate Bridge
Photo courtesy of the Library of Congress. Note the copyright date indicated for the photo is February 5, 1908, which is odd in that masonry supports are plainly visible, some three years before their installation date as provided on the marker.
Credits. This page was last revised on July 26, 2018. It was originally submitted on September 28, 2013, by Denise Boose of Tehachapi, California. This page has been viewed 1,000 times since then and 32 times this year. Photos: 1, 2, 3, 4, 5, 6, 7. submitted on September 28, 2013, by Denise Boose of Tehachapi, California. 8. submitted on September 30, 2013. • Andrew Ruppenstein was the editor who published this page.
