This is the 3rd line from the L (2nd bolted line?) on the Silver Cascade Slab. However, it may appear to be the L-most line unless you walk to the far, L end of the crag. Pleasant, runout, stickier than Reality Check.
Find this by parking at the Helen Hunt Falls, hike up the established trail (c. 0.5 mi) above the falls, past & above Silver Cascade, and before the bridge, head up & R through the trees to the slab. Find this line as the L line of 4 obvious bolted slab lines on the L side of the crag. The hangers appear blacker than its neighbors.
Scramble 4th class to an obvious ledge. Clip the bolt with a Trango hanger at a ledge, traverse L, clip the 1st bolt of Robertson Wall, continue L to the bolts with darker hangers. Go up on small, sort-of-positive holds past 3 bolts. Run it out on easier terrain to a flake. You can sneak in a mediocre #1 Camalot behind the flake and a marginal, small wire above. Continue up to a boulder & belay. Rock anchor of medium wire, blue Alien, & #3 Camalot or further up & L to a tree. 180ft. Walkoff L.
7 pieces of pro in 180ft pushed me to call it 's', despite the lack of such designation in B. D'Antonio's C. Sprgs. guide.
Protection
5 QDs, #1 Camalot and small wire, maybe more if you are creative.