That is pretty much it. There are fields and some duster stips around San
Simon but Steins is not landable....it's just a truck stop in the hills
between San Simon and Lordsburg. There is a large dry lakebed just east of
Steins but should you land there you'll have to figure out how to get the
glider out since there are railroad tracks to the north with no apparent
crossing for a long way. There are most likely dirt roads leading in from
the north but I have no knowledge of those. Lordsburg is just a bit farther
east. There usually is a smaller but landable area of that lakebed on the
south side of the interstate and tracks. I have not been down that way this
season so don't have current info.

As I have said, past Deming you are on your own other than that advice added
above. My guess is that arriving there in the good part of the day you
should be able to easily get very high and be able to make Las Cruces since
that airport is on the east side of the town.

Have fun and best of luck,
Casey