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1865

Oil Creek branches.

Regional Atlas

Plan of East Branch of Oil Creek, Warren …

1865

Warren Co. oil territory.

Regional Atlas

Plan of oil territory, in Warren County. …

1865

Humboldt Mining & Ref. Co.

Regional Atlas

Index map of the various properties. Pro …

1872

Warren, McKean, Potter, Forest, Elk, Cam …

State Atlas

Counties of Warren, McKean, Potter, Fore …