Haha, sounds like I'm employing the same methods as you. I was gonna guess, based on the elevations (and assuming they're in feet and not meters), somewhere near Vegas?
Has everyone given up? I didn't mean to make it THAT hard! If you use the map on my website, I only have one marker in the Confusion Range...you should be able to figure out where the cross-hairs are if you change the map on my site to the OpenCycle map.