The West Augusta district boundaries as defined by an Act of the Virginia general assembly in 1776 included the present day northern panhandle of West Virginia, Greene and Washington Counties in Pennsylvania, and portions of Allegheny and Beaver counties in Pennsylvania. This act created three counties Ohio, Monongahela, and Yohogania. On August 31, 1779, agreement was finally reached between Virginia and Pennsylvania establishing a boundary based on the survey of Mason and Dixon. This agreement was ratified June 23, 1780 by the Virginia general assembly and September 22, 1780 by Pennsylvania's general assembly. If this act had been fulfilled in its entirety, the northern panhandle of West Virginia would have been a part of Pennsylvania rather than Virginia.