Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 84.
CLEARFIELD COUNTY, situated toward the westerly part of Pennsylvania, and traversed by the west branch of Susquehanna river. Area, 1,425 square miles. Although much of the soil of this county is excellent, it is truly an Alpine region, rich in the most varied scenery, the surface being generally broken, and much of it mountainous. It is well watered, and has a salubrious climate. Seat of justice, Clearfield. Pop. in 1820, 2,342; in 1830, 4,803; in 1840. 7,834; in 1850, 12,586.