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2019 Map of Algonac

Name: 2019 Topographic Map of Algonac
Creator: U.S. Geological Survey
Published: 2019
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2019

About this map

Algonac sits at the head of the St. Clair River delta, where the water splits into a complex network of channels and islands. This maritime landscape is defined by its international boundary with Canada, following the South Channel and Saint Clair River proper. On the American side, Harsens Island and Dickinson Island dominate the Saint Clair Flats, a region where the land dissolves into marshes and narrow waterways like the Middle Channel Saint Clair River.

Infrastructure is adapted to this aquatic geography, featuring the Walpole - Algonac Ferry and the Harsens Island Airport. Small settlements and landings like Sans Souci, Pointe aux Tremble, and Clays Landing are scattered along the shorelines, connected by local routes such as Pointe Tremble Rd and State St. The inland areas of the islands show a mix of marshland and established neighborhoods, with Oaklawn Cem and numerous named cuts and drains serving as landmarks for local history and genealogical research.