This is the couloir hidden just behind the Third Apron, South and a little West of Summit Lake. A mild half hour hike leads to 600-800 feet of 50 degree snow and a little water ice (in August anyway). A 4th class traverse exits the couloir and a 1/4 mile hike along the ridge gets you to the summit. Descend along the road or in a tourist's car. I don't think the couloir is described in any guidebooks, but it makes a good morning workout before work in the summer.
Protection
If you really need a rope, you could use pickets or a light rock rack.