Geography of Pennsylvania : containing an account of the history, geographical features, soil, climate, geology, botany, zoology, population, education, government, finances, productions, trade, railroads, canals &c. of the state : with a separate description of each county, and questions for the convenience of teachers : to which is appended, a travellers’ guide, or table of distances on the principal rail road, canal and stage routes in the state / by Charles B. Trego., 660 - Chandler Collection no. 206, Volume: Archives Chandler Collection no. 206. Clarion University Archives.

Geography of Pennsylvania : containing an account of the history, geographical features, soil, climate, geology, botany, zoology, population, education, government, finances, productions, trade, railroads, canals &c. of the state : with a separate description of each county, and questions for the convenience of teachers : to which is appended, a travellers’ guide, or table of distances on the principal rail road, canal and stage routes in the state / by Charles B. Trego., 660 - Chandler Collection no. 206, Volume: Archives Chandler Collection no. 206. Clarion University Archives. http://as-clarion.klnpa.org/repositories/2/resources/1186 Accessed January 15, 2026.