Gaston Engineering & Surveying, P.C. is one of the first Bozeman, Montana Civil Engineering firms doing business in the Gallatin Valley and surrounding areas for over 30 years.Gaston Engineering & Surveying, P.C. specializes in both large and small projects that serve public and private clients throughout Montana. Our projects have included large land developments and subdivisions, major recreational ski resorts, large commercial projects, and individual homeowner needs that require knowledge in land surveying, geotechnical, sewer, water, roads, streets, surface water and water rights, hydrology, environmental issues, soils testing, construction administration and inspection, floodplains, water and wastewater treatment systems, complex irrigation systems, site evaluations, and many other aspects of Civil Engineering.