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Lower Mississippi River - area subject to overbank flooding [U.S. Fish and Wildlife Service]

U.S. Fish & Wildlife Service · 2025 Full Details

Georeferenced: false

Full Details

Title
Lower Mississippi River - area subject to overbank flooding [U.S. Fish and Wildlife Service]
Description
This map shows the approximate extent of overbank flooding in the Lower Mississippi River prior to extensive construction of levees. It was digitized from this map: https://fws.maps.arcgis.com/home/item.html?id=6941d5d2a1a84d05b771ef854a192d40 The original source map is derived from an online source (https://www.digitalcommonwealth.org/search/commonwealth:7h14b0450). Map of the alluvial valley of the Mississippi River from the head of St. Francis Basin to the Gulf of Mexico, showing lands subject to overflow, location of levees and trans-alluvial profiles. The map shows the landscape configuration and the approximate extent of overbank flooding before extensive construction of the levees in the early 1900s. The map was georectified using ERDAS Imagine and contemporary data sources. Edited (to correct position of panels) and georeferenced by Yvonne Allen (USFWS) to geographic NAD1927 using ArcGIS , 3rd order polynomial and 80 ground control points using lat lon grid. Online repo: https://www.sciencebase.gov/catalog/item/58f66491e4b0bd52222f7821
Creator
U.S. Fish & Wildlife Service
Temporal Coverage
Last Modified: 2025-04-14
Date Issued
2025-04-14
Rights
The United States Fish and Wildlife Service (Service) shall not be held liable for improper or incorrect use of the data described and/or contained herein. While the Service makes every reasonable effort to ensure the accuracy and completeness of data provided for distribution, it may not have the necessary accuracy or completeness required for every possible intended use. The Service recommends that data users consult the associated metadata record to understand the quality and possible limitations of the data. The Service creates metadata records in accordance with the standards endorsed by the Federal Geographic Data Committee. As a result of the above considerations, the Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of the data. It is the responsibility of the data user to use the data in a manner consistent with the limitations of geospatial data in general and these data in particular. Although these data have been processed successfully on a computer system at the Service, no warranty, expressed or implied, is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This applies to the use of the data both alone and in aggregate with other data and information.
Access Rights
Public
Format
ArcGIS ImageMapLayer
Language
English
Date Added
August 10, 2025
Provenance Statement
The metadata for this resource was last retrieved from U.S. Fish and Wildlife Service Open Data on 2025-08-24.

Links

Cite and Reference

  • Citation
    U.S. Fish & Wildlife Service (2025). Lower Mississippi River - area subject to overbank flooding [U.S. Fish and Wildlife Service]. . https://gis-fws.opendata.arcgis.com/content/fws::lower-mississippi-river-area-subject-to-overbank-flooding (web service)
  • BTAA Geoportal Link

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