Goldsmith, Prest & Ringwall, Inc. (GPR) Goldsmith, Prest & Ringwall, Inc. (GPR) is a progressive, privately-owned firm that offers Civil Engineering, Structural Engineering, Land Surveying, and Land Planning and Development Services. We serve clients all over Massachusetts. Specifically, our Land Surveying services include: -Property Line/Boundary Survey -Building Permit Plans/Certified Plot Plans -Topographic Survey -Construction Staking -ALTA/ACSM Land Title Survey -GPS Service -Deed Research -Boundary Descriptions -Photogrammetric Control -Construction Record Plans -Flood Certifications Goldsmith, Prest & Ringwall, Inc. 39 Main Street, Suite 301 Ayer, MA 01432 Phone: (978) 772-1590 Fax: (978) 772-1591 Email: info@gpr-inc.com Website: www.gpr-inc.com