The Grand River Conservation Authority Library was donated in 2005, accompanying the archival records of the Authority and its predecessors.

The Library was maintained at the GRCA headquarters for reference and research use and consists of works by and about the GRCA, including both internal and external reports and studies, periodicals, and monographs.

Unpublished library items are described as part of the GRCA archives while published items are catalogued as print material and are listed in the library catalogue.