1874 Atlas. Township and borough maps of Butler County Pennsylvania from the 1874 Atlas of the County of Butler, and the State of Pennsylvania, by G.M. Hopkins & Co., Philadelphia.

USGS Topographical Map The township maps are cropped from a 1/50,000 USGS Geological Survey Map of Butler County dated 1986. The 1/24,000 maps which are the basis of the county map are dated 1950 through 1964.

Survey Maps of Butler County Pennsylvania, 1892, J. A. Heydrick & Son.

Depreciation Lands in Butler County. Shows the five surveying districts of the Depreciation Lands superimposed over current counties. (Pennsylvania Department of Internal Affairs Annual Report of the Secretary of Internal Affairs, 1892).

Old Butler County Township Lines. Township lines as they existed in 1800, 1804, 1840, and 1850.

Gazateer. Shows a list of old towns and the townships where they existed.

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Updated: 16 Jan 2003