"Allegheny
"This is a beautiful, large and navigable river, taking its rise in Lycoming county, P. within a few miles of the head waters of Sinemahoning creek, a navigable stream that falls into the Susquehanna river, to which there is a portage of 23 miles. Thence pursuing a N. course passes into New-York state, winding to the N. W. about 20 miles, turns gradually to the S. W. enters Pennsylvania, and meandering in about that direction 180 miles, joins the Monongahela at Pittsburgh.
"Few rivers and perhaps none excel the Allegheny for the transparency of its waters. . .
"Its mean velocity is about two miles and a half an hour. In its course it receives many large and tributary streams; among these are the Kiskimenetas, Mohulbuckitum, Tobas, French creek, &c. French creek is navigable to Waterford; thence to Lake Erie is but fifteen miles portage. To render the communication more complete the legislature of Pennsylvania have passed a law for the erection of a turnpike between Waterford and Erie. Another communica-
