ARCHBALD, a borough of Lackawanna county, Pa., U.S.A., in the anthracite fields, Iom. N.E. of Scranton, about 9ooft. above sea-level. It is served by the Delaware and Hudson and the New York, Ontario and Western railways. The population in 1920 was 8,6o3, in 1930, 9.587 by Federal census. Coal-mining is the principal industry of the borough. Within its limits is a large glacial "pot-hole," about 2oft. in diameter and 4oft. deep. Arch bald was named after James Archbald, formerly chief engineer of the Delaware and Hudson. It was incorporated in