Contact us On this page Skip this page navigation Contact us: Ontario specification for Global Navigation Satellite Systems (GNSS) geodetic control surveys There are many ways to contact us. AddressFor municipal or other projects intended for COSINEGeodetic Services ProgramParcel Mapping and GeoreferencingOffice of the Surveyor GeneralMinistry of Natural Resources300 Water Street, 2nd Floor NorthPeterborough, OntarioK9J 3C7Geodetic Services General Inquiry telephone: 705-313-2789Fax: 705-755-2149For MTO projectsGeomatics OfficeMinistry of Transportation Ontario301 St. Paul StreetSt. Catharines, OntarioL2R 7R4General Inquiry telephone: 905-704-2919 Accessibility If you need information or communication supports in a different format, please let us know by using the phone numbers or contact form on this page. Learn more about our policy on providing accessible customer service to persons with disabilities. Send us an email Message Please do not include any personal or financial information. Would you like a reply? Would you like a reply? Read the service standards for how long it will take to get a reply. Yes No Email You will receive a confirmation email. Optional information Name Phone number Address We will contact you by letter if we need personal or financial information. Your privacy mattersYour personal information is being collected in order to respond to your inquiry. Your inquiry/personal information will be forwarded to the appropriate ministry(s) for response and will be used to respond to your inquiry. Some of the non-identifying information shared will be used by Cabinet Office and/or ServiceOntario to measure performance and improve our services. Your information will not be placed on mailing lists or released to any third party, except as may be authorized by law.For questions on how personal information collected on this page will be used, please read our privacy statement. Leave this field blank Updated: July 12, 2024 Published: November 25, 2021