Surface drill rigs United States, Mifflinburg, Pennsylvania
Surface drill rigs 2003 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2011 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1987 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2001 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1980 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1993 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2008 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2009 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2006 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1977 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1986 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2007 United States, Mifflinburg, Pennsylvania