trails / hills, loop (1.5mi from ~mile 28-29.5 on the firetrails 50mi course, then ~2mi rolling with a couple of smaller hills back to the staging area:
firetrails topo).
easy loop: 3.5mi in 46:16 (13:13min/mi)
hard loop: 3.5mi in 5:52 + 6:44 + 15:28 + 5:13 + 7:36 (40:53, 11:41min/mi)
cooldown: 5 minutes
total running: 1:32:03