
Port St. Lucie expands into the northeastern quadrant of this landscape, where a dense suburban street grid meets the sprawling natural wetlands of the Allappattah Flats. The transition from structured development to conservation land is sharp, defined by the County Line Canal which separates the residential blocks of St. Lucie Co from the preservation areas of Martin Co. Aviation history in the region is marked by the Treasure Coast Airpark, situated near the western edge of the developing corridor. To the south, the terrain shifts into the wet prairies and marshy lowlands of Cane Slough and the elevated ground of Green Ridge. This area illustrates the late-20th and early-21st-century push to balance coastal urbanization with the protection of Florida’s unique interior hydrology, visible through the preservation of the Allappattah Flats Trl.
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1948 · Palm City
USGS Topo · 1:24,000
1948 · Ankona
USGS Topo · 1:24,000
1950 · Ankona
USGS Topo · 1:24,000
1950 · Palm City
USGS Topo · 1:24,000
1953 · Okeechobee 4 SE
USGS Topo · 1:24,000
1953 · Okeechobee 1 SE
USGS Topo · 1:24,000
1953 · Okeechobee 4 NE
USGS Topo · 1:24,000
1953 · Indian Town SE
USGS Topo · 1:24,000
1953 · Indian Town NW
USGS Topo · 1:24,000
1953 · Fort Pierce SW
USGS Topo · 1:24,000