The K&P trail runs along the old Kingston and Pembroke Railway bed.  It is a series of unconnected sections between Kingston and Renfrew, Ontario. The total distance of the segments is approximately 176 km. The trail is a mixed-use trail with a variety of activities including hiking, ATV, and snowmobiling. The sections include:

Follow the Butcombe trail through the Mendips hills.

https://www.walkingenglishman.com/ldp/butcombetrail.html

This route is located in the Olympic National Forest. It consists of two connected loops and is approximately 33-35 miles in length with 12,000 feet of vertical gain. There is some scrambling, a bit of navigation involved, and somewhat unmaintained trails. There are some water sources along the route. Approximately 8.5 miles of the route are on Forest Road 2880.