"We'll be camping either at the Portal (backpacker campground) or Horseshoe Meadows Thursday night I think, so it should be fairly easy to make it to the Ranger Station in the morning to see about a same day overnight permit or a Saturday dayhike"

Hi Billy,
as others will indicate, it would be highly unlikely that you wouldn't get a walk-in overnight permit for pretty much any day in October.

If you are going up Thursday, why not acclimatize on the way up? Why not get the permit starting Thursday and camp at Lone Pine lake the first night(I've camped there a couple of times and love it). Then go to outpost or trail camp the second night and then summit and descend on the 8th.

Last edited by tdtz; 09/11/11 01:07 PM.