STUDY AUTHORS: Three Parameters Plus, Inc (3PPI)

This chapter provides a comprehensive overview of soil types in the study areas based on the Exploratory Soil Survey of Alaska completed by the U.S. Department of Agriculture, Soil Conservation Service.


  • The soil study areas within the Bristol Bay region total approximately 773,000 acres in size. 58% of the more compact (265,000 acre) mine study area is classified as having well-drained and naturally strong acidic soils.