3620 is a fairly easy summit to reach and activate when visiting the Camp Sherman-Upper Metolius River Area.  Access involves a half-mile hike up from Forest Route 1270 with about 300ft elevation gain.  The downside to this summit is the area was burned badly from past wildfires and the hike requires a bushwhack up an abandoned fire road. 

The summit is somewhat flat with a wide activation zone, but very brushy.  There are some live trees to hang a wire, but a support mast is recommended.  I had good Verizon service and was able to self spot.