Sackett & Brake Survey, Inc. 25 Lakewood Road - Madison, Maine PO Box 207 - Skowhegan, ME 04976 Phone/Fax - 207-474-6223 EMAIL	GPS Surveying - 40°F. The crew is ready to launch. Digging Deep in Winter. More often than not - you have to get wet! With GPS surveying, some views are Beautiful! Laying the "Gas" Pipe.