kashcraft, i hike/walk/run 7 days/week and it took me 9 hrs to do an 18.5 mile hike with about 4k elevation, and only 3300 ft elevation was in a row. it took me 2 hrs 20 min to get up the 3300 ft elevation, but i wouldn't slowed way down if i would have had to continue 7 more miles uphill. it seems hard to figure, especially with altitude, but i'm wondering if i might take us even 15 or more hrs to finish the hike and possibly 6-8 hrs to go up? (we were dragging at the end of the 18.5 miles, but also weren't eating as often as we should, my knees and feet hurt, and my husband's back hurt). there's part of me that wonders if we'll even make it, but i think we will with a lot of determination. any good guesses how long it will take us?