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Figures 2-9: Barrier Pillars in the Western Middle Field: Anthracite Region of Pennsylvania

Description: Maps illustrating an investigation of barrier pillars in the Western Middle field as part of the comprehensive study of mine-water problem in the anthracite region of Pennsylvania. Scale 1:4,500 feet. Included in the set is a graph (Figure 8) showing the relationships between pumping loads in the anthracite region of Pennsylvania with altitude on the x-axis and distance (in miles) from the Conowingo Portal on the y-axis. An explanation of the graph in Figure 8 (Figure 9) summarizes data from Bu… more
Date: 1953
Creator: United States. Bureau of Mines.
Location: None

[Map of North Texas State College, 1953]

Description: The image here is a black and white campus map of the North Texas State College, dating back to 1953. On the upper left corner is a framed box with a cartoon of a casual dressed man searching for something. Next to the man is the title of the map. Beneath the title, on the lower right corner, is an inked compass that points north, for reference. All buildings are purely black and have a number assigned to them. Streets are displayed as straight lines. Found on the right of the map is the … more
Date: 1953
Creator: North Texas State College
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