I have personally been told by several people in that area to be very careful when walking that trail since some people have died trying to find their way out
I have the satellite map saved but there is no trail map for it. It has 9.9 miles of trails but they are all self correcting and will always point you to an exit. It spans from 21st to 25th street
I'm not sure there is a picture map. I would suggest looking on the app AllTrails
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