The American Congress on Surveying and Mapping or ACSM, is a international professional association representing the interests of those engaged in measuring and communicating spatial data relating to the Earth's surface. ACSM is comprised of several autonomous professional societies, namely:

• The American Association for Geodetic Surveying or AAGIS
• The Cartography and Geodetic Information Society or CAGIS
• The Geographic and Land Information Society or GLIS
• The National Society of Professional Surveyors , Inc. or NSPS

Individual members of ACSM are members of at least one of these professional societies.

ACSM's headquarters are located at 6 Montgomery Village Avenue, Suite #403, Gaithersburg, MD 20879.

External Links

• Official website
• The American Association for Geodetic Surveying Official website
• The Cartography and Geographic Information Society Official website
• The Geographic and Land Information Society Official website
• The National Society of Professional Surveyors, Inc. Official website