Mark Tukman is the owner of Tukman Geospatial, based in Santa Rosa, California. He has more than 20 years of experience using imagery and other datasets to help public and private ...view moreMark Tukman is the owner of Tukman Geospatial, based in Santa Rosa, California. He has more than 20 years of experience using imagery and other datasets to help public and private organizations map land cover, make decisions using spatial data, and support land conservation efforts.view less