2020 Map of Portage
USGS Topo · Published 2020About this map
Portage sits at the western edge of a complex hydraulic landscape defined by the Atchafalaya Basin Floodway. The terrain is a network of managed water and natural drainage, where the Atchafalaya River and the Bayou Courtableau Outlet Channel dominate the hydrology. The mapping reveals the essential role of levees and spillways in this region, with Portage Levee Rd and Spillway Rd tracing the lines of flood control that protect the settled areas from the expansive wetlands to the east.
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Map Details
Editions of this 2020 Portage Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1935 · Osca Bayou
USGS Topo · 1:62,500
1939 · Fordoche
USGS Topo · 1:62,500
1940 · Arnaudville
USGS Topo · 1:62,500
1954 · Baton Rouge
USGS Topo · 1:250,000
1955 · Osca Bayou
USGS Topo · 1:62,500
1955 · Fordoche
USGS Topo · 1:62,500
1956 · Baton Rouge
USGS Topo · 1:250,000
1959 · Osca Bayou
USGS Topo · 1:62,500
1959 · Fordoche
USGS Topo · 1:62,500
1959 · Palmetto
USGS Topo · 1:62,500