I want to do a little ride over T'Giving. I want to go to Big Bend TX then cut into Mexico and ride along the Rio Grande and wander up to say Tombstone at some point. Then ride AZ, and loop around NM back to TX. Any advice on this sort of thing? What I'm really wondering about (besides where this post reaslly belongs) is what sort of prep is needed for a couple of border crossings? I'm hoping I can just go right across at Presidio/Ojinaga without much drama and ride along the river and then west until I cut North back into the US at around Agua Prieda/Douglas. I can't be rocket science right?