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Ahtanum Ridge: Difference between revisions

Coordinates: 46°30′25″N 120°48′56″W / 46.50694°N 120.81556°W / 46.50694; -120.81556
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'''Ahtanum Ridge''' is a long [[anticline]] [[mountain]] [[ridge]] in [[Yakima County, Washington|Yakima County]] in the [[U.S. state]] of [[Washington (U.S. state)|Washington]]. It is located just south of the city of [[Yakima, Washington|Yakima]], and much of its length is at the northern edge of the [[Yakama Indian Reservation]].
'''Ahtanum Ridge''' is a long [[anticline]] [[mountain]] [[ridge]] in [[Yakima County, Washington|Yakima County]] in the [[U.S. state]] of [[Washington (U.S. state)|Washington]]. It is located just south of the city of [[Yakima, Washington|Yakima]], and much of its length is at the northern edge of the [[Yakama Indian Reservation]].


Ahtanum Ridge is part of the [[Yakima Fold Belt]] of east-tending long ridges formed by the folding of [[Miocene]] [[Columbia River Basalt Group|Columbia River basalt flows]].<ref>[http://gldims.cr.usgs.gov/webapps/cfusion/Sites/qfault/qf_web_disp.cfm?disp_cd=C&qfault_or=1327&ims_cf_cd=cf Complete Report for Saddle Mountains structures], USGS Earthquake Hazards Program</ref>
Ahtanum Ridge is part of the [[Yakima Fold Belt]] of east-tending long ridges formed by the folding of [[Miocene]] [[Columbia River Basalt Group|Columbia River basalt flows]].<ref>[http://gldims.cr.usgs.gov/webapps/cfusion/Sites/qfault/qf_web_disp.cfm?disp_cd=C&qfault_or=1327&ims_cf_cd=cf Complete Report for Saddle Mountains structures] {{webarchive|url=https://web.archive.org/web/20110721071428/http://gldims.cr.usgs.gov/webapps/cfusion/Sites/qfault/qf_web_disp.cfm?disp_cd=C&qfault_or=1327&ims_cf_cd=cf |date=2011-07-21 }}, USGS Earthquake Hazards Program</ref>


Ahtanum Ridge separates [[Yakima River|Yakima Valley]] on the south from [[Ahtanum Valley]] on the north. At the eastern end of Ahtanum Ridge the [[Yakima River]] flows through Union Gap. The ridge continues east of [[Union Gap, Washington|Union Gap]] as the [[Rattlesnake Hills]].
Ahtanum Ridge separates [[Yakima River|Yakima Valley]] on the south from [[Ahtanum Valley]] on the north. At the eastern end of Ahtanum Ridge the [[Yakima River]] flows through Union Gap. The ridge continues east of [[Union Gap, Washington|Union Gap]] as the [[Rattlesnake Hills]].

Revision as of 12:01, 28 June 2017

Ahtanum Ridge

Ahtanum Ridge is a long anticline mountain ridge in Yakima County in the U.S. state of Washington. It is located just south of the city of Yakima, and much of its length is at the northern edge of the Yakama Indian Reservation.

Ahtanum Ridge is part of the Yakima Fold Belt of east-tending long ridges formed by the folding of Miocene Columbia River basalt flows.[1]

Ahtanum Ridge separates Yakima Valley on the south from Ahtanum Valley on the north. At the eastern end of Ahtanum Ridge the Yakima River flows through Union Gap. The ridge continues east of Union Gap as the Rattlesnake Hills.

References

  1. ^ Complete Report for Saddle Mountains structures Archived 2011-07-21 at the Wayback Machine, USGS Earthquake Hazards Program

46°30′25″N 120°48′56″W / 46.50694°N 120.81556°W / 46.50694; -120.81556