Delaware Lackawanna & Western - Lackawanna #664 an EMD F3A passing through Easton PA. This locomotive's career began as Bangor & Aroostook Railroad (BAR) #506A in 1948. (source internet http://www.american-rails.com/spencer.htm)

Delaware Lackawanna & Western - Lackawanna #663 (owned by Tri-State Railway Historical Society, Inc.) & 664 (owned by Anthracite Railroads Historical Society, Inc.) EMD F3A engines (builder: General Motors Electro-Motive Division Model F3, 1948) plus an F3b booster unit passing through Easton PA. (source: http://www.nps.gov/stea/planyourvisit/operatinglocomotives.htm)

Lackawanna #663 (owned by Tri-State Railway Historical Society, Inc.) & 664 (owned by Anthracite Railroads Historical Society, Inc.) EMD F3A engines (builder: General Motors Electro-Motive Division Model F3, 1948) plus an F3b booster unit passing through Easton PA. These diesel locomotives are visiting Steamtown and operating the park's 2013 excursions. The locomotives are on temporary loan to the National Park Service for display and traveling interpretive operations.