[7] See Pownal's Administration of the British Colonies,--Colden's History of the Five Nations,--New York Historical Collections, vol. II.,--Charlevoix Histoire de la Nouvelle France,--Hon. De Witt Clinton's Discourse before the N. Y. Historical Society, 1811,--Discovery of the Mississippi river, by Father Lewis Hennepin,--M. Tonti's Account of M. De La Salle's Expedition,--La Harpe's Journal, &c.
The portion of Pennsylvania lying west of the Alleghany ridge, contains the counties of Washington, Greene, Fayette, Westmoreland, Alleghany, Beaver, Butler, Armstrong, Mercer, Venango, Crawford, Erie, Warren, McKean, Jefferson, Indiana, Somerset, and a part of Cambria.
_Face of the Country._--Somerset, and parts of Fayette, Westmoreland, Cambria, Indiana, Jefferson, and McKean are mountainous, with intervening vallies of rich, arable land. The hilly portions of Washington, and portions of Fayette, Westmoreland, and Alleghany counties are fertile, with narrow vales of rich land intervening. The hills are of various shapes and heights, and the ridges are not uniform, but pursue various and different directions. North of Pittsburg, the country is hilly and broken, but not mountainous, and the bottom lands on the water courses are wider and more fertile. On French creek, and other branches of the Alleghany river there are extensive tracts of rich bottom, or intervale lands, covered with beech, birch, sugar maple, pine, hemlock, and other trees common to that portion of the United States. The pine forests in Pennsylvania and New York, about the heads of the Alleghany river, produce vast quantities of lumber, which are sent annually to all the towns along the Ohio and Mississippi rivers. It is computed that not less than thirty million feet of lumber are annually sent down the Ohio from this source.
_Soil, Agriculture, &c._--Portions of the country are excellent for farming. The _glade_ lands, as they are called, in Greene and other counties, produce oats, grass, &c., but are not so good for wheat and corn. Those counties which lie towards lake Erie are better adapted to grazing. Great numbers of cattle are raised here. Washington and other counties south of Pittsburg produce great quantities of wool. The Monongahela has been famous for its whiskey, but it is gratifying to learn that it is greatly on the decline, and that its manufacture begins to be regarded as it should be,--ruinous to society. A large proportion of the distilleries are reported to have been abandoned. Bituminous coal abounds in all the hills around Pittsburg, and over most parts of Western Pennsylvania. Iron ore is found abundantly in the counties along the Alleghany, and many furnaces and forges are employed in its manufactory. Salt springs abound on the Alleghany, and especially on the Conemaugh and Kiskiminitas, where salt, in large quantities, is manufactured.