Western Sierra Landscape Return to Directory Contact Doug Dumas Address P.O. Box 1088 City Colfax State CA ZIP Code 95713 Business Phone 1 530 401-2417 Business Fax 1 530 637-5346 CSLB Number https://www2.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=845676 Specialty Irrigation Contractors & Supplies, Landscape Architects & Design, Landscape Contractors, Commercial, Landscape Contractors, Residential, Retaining Walls