Not that it has any def answers either, but the people who really cared back in the 90's and early 2000's did lots more foot work and research than any of us combined now dayz. (erra being when locals got the aproval to take rigs other than ATV's on the trails)
From Kurt bakc in 2006
"Ill answer a few questions.
Do maps show Constricor? I have an early map (30's?) that shows a trail 1/2 way up the canyon. As for current maps, no.. but on the same hand, they don't show Rattlesnake, Charlies trail nor hundereds of miles of other trails in the area. This IS something we (U4WDA) are working on with the BLM. They know that the current trail inventory is not too current. It was last inventoried in ~91'? And likely didn't include anything deemed not passable by a stock rig (such as many of the inventories throughout Utah). They know of the current trails in the area, and they know how dear to our hearts they are. I spoke for quite a while about them.
As for the future of of 5MPRA. They will shortly eliminate all of the "open" cross country travel areas, and they will limit all motorized travel to existing trails only. What we need to do is make sure all of our routes (as far south as Little Moab) get recognized as existing (as I mentioned their inventory is way outdated).
How will Rattlesnake and Constrictor fair?
Rattlesnake is in a "open" cross country travel area as best I can tell (I will inspect closer at a meeting with the BLM). As long as we can get them to recognize it (if they don't already, I don't know which ones they have inventoried), it will be fine. Constrictor is the same situation though it does not lie entirely in an open travel area. In fact a large part of Constrictor exists on private property (as many of the area trails cross in and out of). Turn of the century patent mine claims left all sorts of owners out in the area. Once again if we can get Constrictor recognized, it is fine. This of course will be subject to a public hearing (I assume sometime next year) and of course some negative input from all the hikers that enjoy the scenery in the area
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I'll post more as it comes, hopefully this thread will end here (for a while) as I am honestly wore out on the whole "internet/Constrictor" thing. Please respect that as I will..."