Central Mineral and Environmental Resources Science Center; Eastern Mineral and Environmental Resources Science Center
Recommended Citation:
Smith, David B. dsmith@usgs.gov,Solano, Federico fsolanoc@usgs.gov,Woodruff, Laurel G. woodruff@usgs.gov,et al. Geochemical and mineralogical maps, with interpretation, for soils of the conterminous United States. 2019-01-01.