sparky wrote:It is hard to be sure, but it seems as though I can see parts of this trail when comparing the old map with current topos and satellite images.
I was looking at Google Earth, and I could plainly see segments of the Happy Gap trail on the south slopes. Those slopes suffered fire damage in recent years, so that probably complicated the trails usability. On the north slopes I couldn't find anything that I could positively identify as trail. A more sane thing to do would be to check out where the old HG trail ends up on the middle fork in a low water year or season. The old map posted above suggests many switchbacks on that very steep slope, and if anything survives of the old trail, it would be there.