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Southwest Pass Louisiana Historical topographic map, 1:31680 scale, 7.5 X 7.5 Minute, Year 1947

~ Southwest Pass LA topo map, 1:31680 scale, 7.5 X 7.5 Minute, Historical, 1947, updated 1947

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Southwest Pass, Louisiana, USGS topographic map dated 1947.

Includes geographic coordinates (latitude and longitude). This topographic map is suitable for hiking, camping, and exploring, or framing it as a wall map.

Printed on-demand using high resolution imagery, on heavy weight and acid free paper, or alternatively on a variety of synthetic materials.

Topos available on paper, Waterproof, Poly, or Tyvek. Usually shipping rolled, unless combined with other folded maps in one order.


  • Product Number: USGS-5593334
  • Free digital map download (high-resolution, GeoPDF): Southwest Pass, Louisiana (file size: 5 MB)
  • Map Size: please refer to the dimensions of the GeoPDF map above
  • Weight (paper map): ca. 55 grams
  • Map Type: POD USGS Topographic Map
  • Map Series: HTMC
  • Map Verison: Historical
  • Cell ID: 12384
  • Scan ID: 334117
  • Imprint Year: 1947
  • Woodland Tint: Yes
  • Field Check Year: 1935
  • Datum: NAD27
  • Map Projection: Polyconic
  • Advance: Yes
  • Planimetric: Yes
  • Map published by United States Geological Survey
  • Map Language: English
  • Scanner Resolution: 600 dpi
  • Map Cell Name: Dixon Bay
  • Grid size: 7.5 X 7.5 Minute
  • Date on map: 1947
  • Map Scale: 1:31680
  • Geographical region: Louisiana, United States

Neighboring Maps:


All neighboring USGS topo maps are available for sale online at a variety of scales.


Spatial coverage:

Topo map Southwest Pass, Louisiana, covers the geographical area associated the following places:

- Customhouse Bayou (historical) - Outlet E-2 - Block 24 Oil Field - Bob Taylors Pond (historical) - Cockler Bay - Shell Central Facilities Seaplane Base - East Bay - Outlet E-1 - Shell Central Facilities East Bay Block 24 Heliport - Dixon Bay - W-2 Tank Battery Seaplane Base - Bay Ronfleur - Chevron Southpass Tank Battery W-2 Heliport - Block 53 Oil and Gas Field - Double Bayou - E-3 Tank Battery Seaplane Base - Outlet W-1 - Outlet E-3 - Joseph Bayou - Caminada Pass - Bay Macoin - Southwest Pass - East Bay Oil Field - Porpoise Bay - Scott Bay - Block 52 Oil Field - Bayou Saint Honore - Pass La Graisse - Outlet W-2 - W-1 Tank Battery Seaplane Base - Bayou Fort Blanc - Cockler Point

  • Map Area ID: AREA29.12529-89.375-89.25
  • Northwest corner Lat/Long code: USGSNW29.125-89.375
  • Northeast corner Lat/Long code: USGSNE29.125-89.25
  • Southwest corner Lat/Long code: USGSSW29-89.375
  • Southeast corner Lat/Long code: USGSSE29-89.25
  • Northern map edge Latitude: 29.125
  • Southern map edge Latitude: 29
  • Western map edge Longitude: -89.375
  • Eastern map edge Longitude: -89.25

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