Blytheville, Arkansas--Tennessee--Alabama--Missouri

Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Blytheville region of the Lower Mississippi Valley area. Scale 1:250,000.
Date: 1983
Creator: U.S. Fish and Wildlife Service
System: The UNT Digital Library

[Figures 1-7: Trace Elements Program Maps]

Maps of Trace Elements Programs field projects, including locations of drill holes for the Colorado Plateau project and location of eastern oil shale in Tennessee.
Date: 1948-06~
Creator: Geological Survey (U.S.). Trace Elements Office.
System: The UNT Digital Library

Helena, Arkansas--Mississippi--Tennessee

Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Helena region of the Lower Mississippi Valley area. Scale 1:250,000.
Date: 1983
Creator: U.S. Fish and Wildlife Service
System: The UNT Digital Library

Memphis, Tennessee--Arkansas--Missouri

Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Memphis region of the Lower Mississippi Valley area. Scale 1:250,000.
Date: 1983
Creator: U.S. Fish and Wildlife Service
System: The UNT Digital Library

Mississippi River From Memphis to Vicksburg

Map illustrating the region between Vicksburg, Mississippi, and Memphis, Tennessee, focusing on the Mississippi River. Towns, rivers, lakes, railroads, and hills are shown. 1 inch = 20 miles.
Date: 1910
Creator: United States. War Department.
System: The Portal to Texas History