Well, the gully may not be consistently real steep, but it is choked with large rocks. :(
Note: this gully is not evident on the Skyterrain map. It can been be made out on the 7.5 min. topo.
More than half-way up now - having skipped the lower part of the gully by first ascending hillside to its right. Next shot is panning down to the left.
And the next shot continues the pan to lower left.