Welcome to the world of maps! The International Map Trade Association (IMTA) brings together in one organization, for mutual benefit persons, firms and institutions engaged, directly or indirectly, in the production and sale of maps, globes, travel guides, spatial information ...

Copyright 2001 ...

The Australian Map Circle Inc. (AMC) is an Australian group of map producers, users and curators which acts as a medium of communication for all those interested in maps.

Society of land surveyors interested in history of Mount Diablo, Northern California and the establishment of the base and meridian initial point.