But about the roads past the BP checkpoint, are there areas to walk around? What about the new no road collecting garbage?
In theory, you would be violating the law, but would you get a ticket? Extremely unlikely up there.
I'd also like to find a trans-pecos rat, if possible. I know they're in the Franklins, but can they be seen around Hueco?
Sure, they are in the Huecos and any other rocky area around there. I have found them at little roadcuts out along 62/180 even in the grasslands.
And how do I get the canyons around Hueco?
Try driving the Gasline Cutoff road. It is a broken paved road that runs south of 62/180 just before the turnoff to the Hueco Tanks. I haven't been there in 10+ years, but it used to produce Trans-pecos Rats, etc. You could walk from that road along the edge of some of the hillsides, although you should be aware that those hillsides are private land. Noone would probably bother you, but you should be aware of that.
-----
Chris Harrison
San Antonio, Texas