Barnes Butte

Short description: Dome of volcanic rock in Crook County, Oregon, United States

Barnes Butte

The north slope of Barnes Butte with Barnes Butte Reservoir below.

Highest point
Elevation| 3,549
Coordinates|  [ ⚑ ] : 44°19′07″N 120°48′38″W﻿ / ﻿44.31861°N 120.81056°W﻿ / 44.31861; -120.81056
Geography
Location| Crook County, Oregon, United States
Geology
Age of rock| ~27.5 Ma[1]

Barnes Butte is a rhyolite dome of volcanic rock in Crook County, Oregon, United States located partly within the city of Prineville. Barnes Butte is composed of welded tuff and is a part of the Crooked River caldera.[2] It was the site of a 1940s mercury mine.[1][3] In 2015, a BLM cleanup of mercury was done to reduce the health risk to residents of nearby IronHorse neighborhood and the Barnes Butte Elementary School.[4]

The butte is a recreational area and includes the IronHorse hiking trail, a 4-mile (6.4 km) loop that includes a hike to the summit.[5]

The butte is considered one of three popular landmarks near Prineville and has been set aside for scenic preservation.[6]

## References

1. ↑ 1.0 1.1 "Preliminary Geology of the Lower Crooked River Basin". http://www.oregongeology.org/sub/projects/lcrb/default.htm. Retrieved 2017-12-28.
2. ↑ "Field trip guide to the Neogene stratigraphy of the Lower Crooked Basin and the ancestral Crooked River, Crook County, Oregon". http://www.oregongeology.org/pubs/og/OGv69n01-Neogenestrat.pdf. Retrieved 2017-12-28.
3. ↑ "Field trip guide to the Oligocene Crooked River caldera: Central Oregon's Supervolcano, Crook, Deschutes, and Jefferson Counties, Oregon". Oregon Department of Geology and Mineral Studies. 2009. http://www.oregongeology.org/pubs/og/OGv69n01.pdf. Retrieved 2014-12-29.
4. ↑ "BLM launches mercury cleanup at Barnes Butte". http://www.oregonlive.com/pacific-northwest-news/index.ssf/2015/06/blm_launches_mercury_cleanup_a.html. Retrieved 2017-12-28.
5. ↑ "The IronHorse Trail Map". http://www.ironhorseprineville.com/ironhorse-community/ironhorse-maps/the-ironhorse-trail/. Retrieved 2017-12-28.
6. ↑ "Crook County Comprehensive Plan - Adopted 1978, Codified January, 2003". http://www.co.crook.or.us/Portals/0/Crook_County_-_Comprehensive_Plan.pdf. Retrieved 2017-12-28.

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