Browse TRAIL Inventories

Computer methods of fitting surfaces to assay and other data by regression analysis

Microfilming maps of abandoned anthracite mines :mines of the eastern middle field

Microfilming maps of abandoned anthracite mines :mines in the Western middle anthracite field

The mine map repository - a source of mine map data.

Applying computer-drawn maps of geologic data to analysis of mining problems

Correlating microfilm mine maps with topographic maps


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