27 May 2019, no need to worry about the No Trespassing signs or fence, a recent flash flood wiped it all away and the canyon is wide open. Beautiful quick hike of only 2mi from parking spot, through Narrows and back.
Striking in all regards
Just go around the fence before the Narrows. Everyone going out there does. It's just a land owner that owns a small portion before this room k feature that has a dispute with BLM.