First ascent per http://www.mountaineers.org/nwmj/05/051_Hinkhouse.html
The Mountaineer in 1971 notes a June 1970 climb by John Bousman and Earl Hamilton under the heading “Washington Pass Peak, Towers of the Throatgripper.” “[We] set off on a cloudy, threatening day... after sitting through a day of rain at the newly built horse camp on Cutthroat Creek, impressed by the partial views of a collection of towers to the south of camp. We climbed each of the towers from the northwest. At no time could we see more than 150 feet but the climbing was enjoyable and not very strenuous. From northwest to southeast are Pinky, Ring, Fickle, and Index.”