Query: G.N.I.S.

See also: Guano Rim. Guano Valley.

The Doherty Slide is a prominent dissected rim of volcanic origin located in southeastern Oregon in the United States. It is located in rural Lake County, just north of the Nevada border. The ridge sits at the eastern end of the Guano Valley, approximately 20 miles (32 km) east of the town of Adel. The ridge was formed by lava extrusions and has been subsequently eroded to produce the present rim. The term "slide" likely refers to the large amount of eroded material along the base of the ridge, which rises approximately 1000 ft (300 m) from the valley floor on the western side. The eastern side is a plateau that stretches eastward through southeastern Oregon. Oregon Route 140 climbs the face of the slide.

Elevation: 5695ft, 1736m.

Articles that refer to this location:

• Field Notes: 1 Oct 2025; 
• Oregon Route 140: at Doherty Slide; 

Oregon Highway 140 climbs Doherty Slide from Guano Valley onto Guano Rim.

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Date and time this article was prepared:3:14:55 PM, 8/1/2026.