Surface drill rigs United States, Mifflinburg, Pennsylvania
Surface drill rigs 1974 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2000 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1990 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2005 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1989 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1978 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1986 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1980 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2000 United States, Moab, Utah
Surface drill rigs 2006 United States, Moab, Utah
Surface drill rigs 2008 United States, Moab, Utah
Surface drill rigs 2007 United States, Moab, Utah
Surface drill rigs 1989 United States, Moab, Utah