Delaware Water Gap NRA: Historic Resource Study

DELAWARE WATER GAP

Historic Resource Study
Slateford Farm

Appendix 23
Standard Sizes for Roofing Slate

23. Standard Sizes for Roofing Slate
Lesley, et al., Geology of Lehigh and Northampton, p. 142.
(click on image for a PDF version)

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dewa/slateford_farm/app23.htm
Last Updated: 31-Dec-2009