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name type elevation coordinate USGS map GNIS ID Agency Creek Quarry: Mine: 699 ft (213 m) Niagara Creek: 1137031: Ajax Mine: Mine: 2,356 ft (718 m) Mount Reuben
The Old Portland Underground, better known locally as the Shanghai tunnels, is a group of passages in Portland, Oregon, United States, mainly underneath the Old Town Chinatown neighborhood and connecting to the main business section.
The Arnold Lava Tube System (or Arnold system) is series of lava tubes in Deschutes County, Oregon, in the United States. It is located several miles southeast of the city of Bend . The system starts in the Deschutes National Forest on the northern flank of Newberry Volcano , heads northeast onto BLM land before finally terminating on private ...
In 1997, the Oregon High Desert Grotto participated in the survey and mapping of all five caves on the site. [23] By 2002, the BLM held a cleanup event at the Redmond Caves. Together they extracted 300 tires in addition to a car at the park site. [ 24 ]
A cave survey is a map of all or part of a cave system, which may be produced to meet differing standards of accuracy depending on the cave conditions and equipment available underground. Cave surveying and cartography , i.e. the creation of an accurate, detailed map, is one of the most common technical activities undertaken within a cave and ...
The Oregon Moonbase was a lunar base analogue site and took place in Youngs Cave circa 1990. [10] The Department of State Lands holds 8 caves within their jurisdiction. [ 11 ] In Redmond, the Bureau of Land Management , in conjunction with the city of Redmond, manages 5 caves. [ 12 ]
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The Oregon High Desert Grotto (or OHDG) is an American caving club, known as a Grotto.It is affiliated with the National Speleological Society.. OHDG is involved with caving and conservation efforts in central Oregon and beyond, including the Oregon Caves National Monument, [1] the Lava Beds National Monument in northern California, [2] and caves in western Idaho and southern Washington.