You can take highway 60 (south of Belen) to hwy 285. Take 285 to Carlsbad. It's about 295 miles from Belen to Carlsbad.
Or as suggested above, hwy 380 south of Socorro to Roswell and to Carlsbad on hwy 285. About 284 miles.
At the turn off at I-25 and 380 you will be in San Antonio. There you will find Buckhorn Burgers, they've been on the Food Network for one of the best green chile burgers. Personally, they are ok. Good to try once.
In Socorro,NM ( right before San Antonio) there is a diner with the best potato and green chile soup. It's called El Camino. Has a 70's vibe to the diner. Great food.
Happy travels.
MM
