Tobyhanna Army Depot (TYAD) is a full-service electronics maintenance facility located in Coolbaugh Township, Monroe County, Pennsylvania. Established on February 1, 1953 on the site of a former artillery training range, the depot is tasked with providing logistical and maintenance support for command and control electronics systems for the United States Department of Defense and repairs tactical ballistic missiles, rigid-wall shelters, and portable buildings for the United States Air Force. It employs 5,000 personnel in North-eastern Pennsylvania, making it the region's largest industrial employer.