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[Illustrations: Buried Valley of the Susquehanna River: Anthracite Region of Pennsylvania]
Illustrations that accompany a report issued by the U.S. Bureau of Mines regarding a buried valley area (a deposit of clay, sand, and gravel) around the Susquehanna River in the anthracite region of Pennsylvania, near the city of Wilkes-Barre. Most of the images are cross sections of the area.
Date:
1950~
Creator:
unknown
System:
The UNT Digital Library
[Figure 1. Place and Direction From Which Figures 2 to 7 Were Taken and Relative Positions of Flooded Surface, Buried Valley of the Susquehanna, and Underlying Coal Measures and Mine Workings]
Map that accompanies a report issued by the U.S. Bureau of Mines regarding a buried valley area (a deposit of clay, sand, and gravel) around the Susquehanna River in the anthracite region of Pennsylvania, near the city of Wilkes-Barre. This map indicates the relative positions of mines and other coal storages locations referenced in the report along with flooded regions and underlying coal measurings and workings.
Date:
1951
Creator:
United States. Bureau of Mines.
System:
The UNT Digital Library
Figures 2, 3, 5, and 6: Barrier Pillars in Lackawanna Basin, Northern Field: Anthracite Region of Pennsylvania
Maps showing the effects of barrier pillars on water flow in relation to mines in Lackawanna Basin, northern field of the Anthracite Region of Pennsylvania. Scale 1:4,500 feet.
Date:
1952
Creator:
United States. Bureau of Mines.
System:
The UNT Digital Library
Figures 2-9: Barrier Pillars in the Western Middle Field: Anthracite Region of Pennsylvania
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 Bureau of Mines Technical Paper 727, Report of Investigations 4700, and Bulletin 513.
Date:
1953
Creator:
United States. Bureau of Mines.
System:
The UNT Digital Library