This loop climbs Whiteface and Passaconaway mountains and includes the Square Ledge Trail and the Wonalancet Range back to the Ferncroft parking area. I took the Tom Wiggen trail on the way up Whiteface. The circuit is consistently technical with a few challenging descents. A full report will follow, but my time for the 13.6 mile loop with 6400' of climb was 2:59:23.