It goes at 5.6, it's in Beckey's guide, and Joe Puryear and Stony Richards climbed it, like, last summer, or summer before last. Approach from the NF Tieton River Road, not from US 12.
Joe posts here as joepuryear, or you can contact him at his homepage:
http://www.cascadeimages.com
BTW, Eric, you should consider coming out to the second meeting of the newly forming Yakima Climber's "Club" this Thursday. Joe was at the first meeting, and he'll prolly show up again this month. He's a really nice guy and I'm sure he'd tell ya anything you might want to know about the stuff he's done in the Tieton.
The meeting will be in the upstairs forum at Glenwood Square at Tieton and 51st-ish at 7:00 p.m. Local climber and attorney Rod Nelson is gonna show some slides of his Cho Oyo expedition.