1. Howe's map of the oil district of Pennsylvania showing the farms, leases & topography upon Oil Creek, Cherry Run, Pithole Creek, West Pithole, Muskrat Run, Stewarts Run, Hunters Run, West Hickory, Dennis Run, East Oil Creek, Caldwell Creek and Church Run : comprising the oil producing territory of Pennsylvania / [cartographic material] Yale Public content 1866. 2008-07-31T15:42:17Z. 2018-10-10T21:37:01Z. Howe, Henry G., cartographer. Henry G. Howe. English. cartographic image. Public. Pennsylvania, Crawford County, Warren County, Venango County, Crawford County., Venango County., and Warren County.