More than a single math circle, the Math Circles Collaborative of New Mexico is an umbrella organization for promoting and coordinating math circles and related activities such as Julia Robinson Math Circles (http://stemsantafe.org/news-events/julia-robinson-mathematics-festival-santa-fe/) in New Mexico. Most of our efforts are in the northern part of the state at present. We also run the Math Teachers' Circle of Santa Fe.
Our closest partner is STEM Santa Fe (http://stemsantafe.org/), but we work closely with schools, colleges and universities, and various STEM organizations from Taos to Los Lunas (and we hope further south to New Mexico Tech in Socorro).
One of our projects is the "Missing 'M" in STEM" curriculum, where math circles activities begin investigations that are further developed using computational tools. See http://www.mathcirclesnm.org/missing-m
Our website is http://www.mathcirclesnm.org/
For more information, contact James C Taylor firstname.lastname@example.org