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1. Aerial Photography: Mifflin County, Pennsylvania

1995. Mifflin County - Laura H. McLaughlin. Aerial Orthophotograph taken on April 5, 1995.

2. Late Wisconsinan Glacial Border 1:100,000

1995. Pennsylvania Bureau of Topographic and Geologic Survey, Dept. of Conservation and Natural Resources. Late in 1994, the Pennsylvania Bureau of Topographic and Geologic Survey was asked to develop a digital physiographic provinces map at 1:100,000 sc...

3. Late Wisconsinan Glacial Border 1:500,000

1995. Pennsylvania Bureau of Topographic and Geologic Survey, Dept. of Conservation and Natural Resources. Late in 1994, the Pennsylvania Bureau of Topographic and Geologic Survey was asked to develop a digital physiographic provinces map at 1:100,000 sc...

4. Physiographic Provinces 1:100,000: Pennsylvania

1995. Pennsylvania Bureau of Topographic and Geologic Survey, Dept. of Conservation and Natural Resources. Late in 1994, the Pennsylvania Bureau of Topographic and Geologic Survey was asked to develop a digital physiographic provinces map at 1:100,000 sc...

5. Physiographic Provinces 1:500,000: Pennsylvania

1995. Pennsylvania Bureau of Topographic and Geologic Survey, Dept. of Conservation and Natural Resources. Late in 1994, the Pennsylvania Bureau of Topographic and Geologic Survey was asked to develop a digital physiographic provinces map at 1:100,000 sc...