The Horse Creek drainage to the southwest of Misch on Sept. 1, 2007. Horse Creek drains to Buck Creek. It seems like a viable approach route but I wouldn't go into that valley with a 10-ft machete. I'll take my chances hacking my legs across all that steep, vegetated sidehilling from Green Mountain.
Note that a loop trip could be done whereby you go in or out via the Hurricane Peak-Huckleberry Mountain divide seen at upper right. This high loop traverse might take 4 days.