Colt45,
We do a good deal of caving out in West Texas. I agree with what others have said. Start with the TSS archive to see what else is in the area and how close it is to your cave. I'm in Austin (where the TSS archive is kept) and I can help you out with that if you're interested. It'd also be a good idea to do some ridge walking in the area to get an idea for the topography and if there might be other entrances or other caves nearby. Shoot me a private message if you want help with the TSS archives or want any help from Texas cavers.