Keywords: EHAFBconstructioneqpt.jpg Construction equipment rock crushing operations along Hanson Highway Ernest Harmon Air Force Base Stephenville Newfoundland 347th EAB US Army Corps of Engineers Windfield Photographic Collection POB 340 Stn B London Ontario Canada N6A 4W1 1960 Photograph by Major Claxton Ray Wayne Ray granted PD Caterpillar vehicles Newfoundland and Labrador Route 460 |