Our team has expertise in boundary and cadastral surveys, route and alignment surveys, topographic surveys, high definition surveying (HDS), and GNSS control network surveys. Sapphire performs survey for high precision deformation, utility location, hydrography, drainage, and mineral retracement and fully supports the survey needs of the construction industry. We perform surveys under hazardous environmental conditions and handle blue booking, expert witness and ground-control surveys for mapping projects, including airborne GPS.