BTW, you can see clusters of fires historically along the US-Mexico border in smuggling routes over the years with this viewer:
http://www.geomac.gov/viewer/viewer.shtml
The clusters north of the border are national forest areas (vs other areas with less to burn). The clusters on the border (the NM bootheel as well) are known smuggling areas.
In the last few years, no one goes there except illegals, it's too dangerous because of them. I hiked down in the boothell in the 90s, but wouldn't consider it any more (even if I was carrying). Even in the 90s there were signs of illegals.