Thereafter , Pitt Township was confined to the wedge between the Allegheny and Monongahela rivers .
In 1795 and 1796 , the county reorganized the immense portion of Pitt Township north of the Ohio and Allegheny rivers into new townships .
Pitt Township was confined to the wedge between the Allegheny and Monongahela rivers .
In 1795 and 1796 , the county reorganized the immense portion of Pitt Township north of the Ohio and Allegheny rivers into new townships .