Paul A on 6/4/2015 10:03:44 PM:
I've hiked the GAP and C+O.
Along the C+O the hiker/biker campsites are about every 5 or 6 miles. Along the GAP you'll need to do some longer days, but it's not hard as the walking is flat and easy. Here's where I stayed along the GAP....
Dravo's Landing Primitive Campground (Free)
Mile post 124
Cedar Creek Park Campgrounds (Free)
Mile post 110
Roundbottom Primitive Campground (Free)
Mile Post 99
Stewart's Crossing Campground (Free)
Mile Post 88 & 89
Four Adirondack shelters that sleep 6 - 8 people each at Mile Post 88
Ohiopyle State Park - (Commercial)
Half mile (very steep) uphill from mile post 73
Youghiogheny River Dam Outflow Area Corps of Engineers Campground - (Commercial)
Mile post 62
Husky Haven Campground, Rockwood - (Commercial)
Mile Post 43
Trail Inn Campground, Frostburg, at The Depot - (Commercial)
At Mile Post 15
I did stealth camp 1 night between Husky Haven and Frostburg. Resupply is easy enough as the trails both go right past towns.