You can get the Circle Trail directly from the Borrego Trailhead by heading South out of the parking lot. It reaches the Circle Trail proper in a quarter mile. We used this route with the intention to follow Circle until we reached an unnamed social trail that passes through the old Gabelon Land Grant which reaches the Saddleback junction on Chamiza. We missed the Gabelon junction and did not discover the error until we were almost down to Hyde Park Road. After backtracking and some bushwhacking, we found the trail. Due to the missed junction we took a shortcut via Bear Wallow back to Borrego.