Montgomery from 1778 to 1839

Fincastle County was formed from Botetourt County, which was itself formed "roughly" out of the southern half of that supercounty Augusta. Fincastle was abolished in 1777 and three counties formed from its territory. They were Montgomery, Washington, and (the now state of) Kentucky. In 1778, Greenbrier was formed from Montgomery, Botetourt and Augusta. and in 1790, Wythe County was cut off from Montgomery.

In 1806, Giles County futher reduced Montgomery's territory, and finally in 1839, Floyd was cut off and Pulaski took territory from both Montgomery and Wythe. 

Maps adapted from those in Atlas of County Boundary Changes in VIRGINIA, 1634-1895, Michael F. Doran, 1987, Iberian Publishing Co, 548 Cedar Creek Dr, Athens, GA 30605