The reservoir also occupies a small part of Upshur and Morris Counties .
Lake O ' the Pines is a reservoir on Big Cypress Bayou , also known as Big Cypress Creek , chiefly in Marion County , Texas , USA .
The reservoir also occupies a small part of Upshur and Morris Counties .
Lake O ' the Pines is a reservoir on Big Cypress Bayou , also known as Big Cypress Creek , chiefly in Marion County , Texas , USA .