List of arches in Oregon contains all natural rock arches identified by the USGS in the U.S. state of Oregon. The USGS defines an arch as a natural arch-like opening in a rock mass (bridge, natural bridge, sea arch).[1]
There are 15 listed as of December 12, 2008.
See also
References
- ↑ "Feature Class". Retrieved 2008-12-12.
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