2024 Map of Main Pass
USGS Topo · Published 2024About this map
Delta National Wildlife Refuge dominates this coastal landscape where the Mississippi River delta meets the Gulf of Mexico. The geography is defined by a complex network of active and former distributary channels, including the primary Main Pass and secondary routes like Octave Pass North and Cottam Pass. This environment is a shifting mosaic of islands and water bodies, where named features like Gaspar Island, Contrariete Island, and Japan Island emerge from the surrounding marshes.
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72 named features on this map. Tap any name to fly to it.
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Map Details
Editions of this 2024 Main Pass Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1893 · East Delta
USGS Topo · 1:62,500
1893 · Forts
USGS Topo · 1:62,500
1893 · West Delta
USGS Topo · 1:62,500
1935 · Taylor Pass
USGS Topo · 1:31,680
1947 · Pass A Loutre West
USGS Topo · 1:31,680
1947 · Venice
USGS Topo · 1:31,680
1947 · Main Pass
USGS Topo · 1:31,680
1947 · Pass A Loutre East
USGS Topo · 1:31,680
1948 · Forts
USGS Topo · 1:62,500
1949 · Cubits Gap
USGS Topo · 1:31,680