Are you maybe talking about the Estancia Valley Ranchettes off of exit 203 on I-40?
If so, just google earth Moriarty, NM, then go east a little bit and you will see a subdivision looking area with dirt roads plowed out.
As I am sure you may know, that land is fairly useless. Unless you have adjoining lots, you can't dig a septic and I think the water is saline and brackish if you try to dig a well.
Of course, if I am incorrect in what land you have, it might be better than that.
Land taxes are super cheap here too, so $7/yr might actually represent something not all that bad.