Mike, Runnel Vision is just south of the Big Sleep. As you hike up the Pass trail not to far up there is a slab of rock you walk across that reminds me of a whales back, go right through the woods following cairns all the way. It may take an hour your first time but after that more like 30min hike. The hike is kinda cool I think and the hidden little valley below the wall is beautiful and there is also some cool crack bouldering there. You can also approach from above, it is below the Fish an area Slater developed but it is longer that way. My cairned trail is also the fastest approach to the Eagle beaks from the Big Sleep parking.