I don't have a 4WD, so I parked at Long Canyon and did Chuckwagon, went up the dirt path, and entered Secret Canyon Trail that way. The trail isn't very clear and there's a lot of overgrown trees that ultimately required off-path bushwhacking which wasn't very pleasant. After the fork with David Miller trail, there's a lot of snow and if there weren't footprints ahead of me, I wouldn't have known where the trail goes. Even then, the trail disappears around 1 mile in after the fork, which is unfortunate. I'd recommend waiting a while before attempting this trail.