Original 1943 Pennsylvania anthracite coal mining map and Department of Highways correspondence concerning proposed underground mining at the Henry Colliery, operated by the Lehigh Valley Coal Company in Plains Township, Luzerne County, Pennsylvania.

The 13.5 x 18-inch mining map is titled "Henry Colliery – Route No. 5 – Plains Township – Lehigh Valley Coal Co. – Top Five Foot Vein." Drawn at a scale of 1 inch to 100 feet, it depicts underground mine workings, coal pillars, roads, survey information, and colored annotations relating to proposed mining near the highway. The reverse bears a Pennsylvania Department of Highways received stamp dated July 28, 1943.

Accompanying the map is a July 29, 1943 letter from Bernard J. Harding, District Engineer, to Harry W. Montz, Mining Engineer, Lehigh Valley Coal Company, Wilkes-Barre. The letter acknowledges receipt of proposed mining maps involving the Henry, Westmoreland, and Dorrance Collieries in Luzerne County.

The correspondence specifically identifies proposed mining in the Top Five Foot Vein at Henry Colliery along Route 5 in Plains Township, matching the accompanying map. It also discusses the removal of coal supporting public highways and cites Pennsylvania Act 438 of June 25, 1937, concerning responsibility for highway damage resulting from mining operations.

The map and letter are separate, unattached documents preserved together as a related historical engineering record.

Condition: Both documents exhibit age-related toning, folds, creases, and handling wear. The map has minor edge wear and colored manuscript annotations. The letter shows edge irregularities and wear. Please examine all photographs for additional condition details.