This delightful little trail leaves from Towhead Gap and descends along a brushy route to a sweet little lake filled with trout. Along the way you'll have views of Mount Adams and more.
The trail to Greenwood Lake heads south to meet the Allen Mountain Trail, then turns west to access Greenwood Lake. Sweet, small Greenwood Lake is a great add-on or alternate if you're in the area for High Rock. Once you're at the lake, the trail continues to link up with Forest Road 8511. However, you cannot loop back to your car from here -- you'll need to return the way you came.