Yesterday Emily and I did the “roller coaster”- a 13.5 mile section with over 10 climbs and ensuing descents. The trail makers were forced to create the trail up and over these “view-less rocky ridges”, which is how our book described them. We did a 4 mile warm-up before starting the coaster in the morning, making it a 17.5 mile day. We got into camp past dark last night and agreed it was one of the toughest days in a long while! Here is the
map with the elevation profile:
Thrutrailchicks 
ugh. looks brutal.