Mailing Address
High Altitude Observatory
National Center for Atmospheric Research
P.O. Box 3000
Boulder, Colorado 80307-3000

Street Address
High Altitude Observatory
National Center for Atmospheric Research
3080 Center Green Dr.
CG1
Boulder, Colorado 80301

Phone: 303-497-1000 (NCAR Switchboard)
Fax: 303-497-1589