Recognized as one of the most technologically advanced paper mills in the world, Domtar’s Johnsonburg, Pennsylvania, mill boasts a long and rich history of papermaking since its operations began in 1888. Located near the Allegheny National Forest on the headwaters of the Clarion River, the mill manufactures uncoated freesheet papers used by customers to create brochures, direct mail, stationery, checks, envelopes and hardbound books.