The Union of Socialist Geographers (USG) was formed in Toronto in May of 1974. It was the third such group to form in North America following Antipode (in 1969) and the Socially and Ecologically Responsible Geographers (SERGE in 1971), all dedicated critical approaches to the discipline of socialist geography through an explicitly radical lens. The idea to form the USG grew largely from a group of graduate students from across North America and relied heavily on the support of Michael Eliot Hurst, the then-Chair of the Geography department at Simon Fraser University (SFU) in Burnaby, B.C.
The USG was in existence for approximately 7 years, with chapters (or collectives) in places like Toronto, Vancouver, and Minnesota (to name a few), as well as in Sydney, Australia and London, England. Internal politics led to an early demise for the USG, largely centered around the contested decision of some members to splinter off in 1979 and form a Socialist Geography Specialty Group under the umbrella of the American Association of Geographers. The result was a sharp decline in membership and participation in the USG, with it finally petering out of existence in 1981