We found Wildcat to be a convenient stop along the way from Colorado to Rainier. And for anyone hanging out on the big mountain, Wildcat is both closer and drier than Index or Little Si. Better free-camping too. Climbers who can crank these sustained cracks may also find happiness on two of Wildcat's roadside sport-routes.
The sport crag on the road above Wildcat Wall looks like a smaller version of Astral Wall at the South Fork Crag of the Tieton. Both have the horizontal hexagons that form when lava pours over a cliff. Steep! 5.11b for the left and 5.11c/d for the right one with the leaning corner start. Maybe about eight bolts each. There are easier routes to the right, but they seem to attract a lot of munge. Spot the bolts from the road above Wildcat, cross twenty-five feet of talus to the belay zone.
I'd post the routes but for the daunting task of looking through all my Climbing magazines to find the names.
The left-hand route is Land Down Under, .11c, although maybe easier now that it's all chalked up and less cryptic. The right-hand route is Anaphylactic Shock, given .12a in Tieton River Rocks. It was rated .11d when first done, but became slightly harder when a jug broke at the (old) second bolt. I think .11d is still fair.