The same thing happened to my friend and me last summer. This trail was supposed to be a loop, but loop we did not. There were no signs and the markers were confusing. Because of this, we kept following what we thought were our markers and ended up on a power line trail. We hiked for quite some time under the hot blistering sun, with zero idea of where we were. Finally reached a road and were able to eventually catch a ride back to Fish Lake.