Ahtanum Ridge

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.

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

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.

ee also

*Horse Heaven Hills
*Manastash Ridge
*Umtanum Ridge

References

External links

*


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