Grand Portage National Monument Preliminary Soil Survey
Gafvert U. 2009. Grand Portage National Monument Preliminary Soil Survey. Natural Resource Technical Report. NPS/GLKN/NRTR—2009/188. Natural Resource Program Center. Fort Collins, Colorado
A preliminary soil survey has been completed for Grand Portage National Monument, a cultural park located in northeastern Minnesota. Funding was provided by the Midwest Region GIS program through a Natural Resources Preservation Proposal (NRPP), and the Great Lakes Network (GLKN) provided staff to complete the field work, develop the spatial soils layer, soils tabular data (including soil properties and interpretations), and write the final report. High resolution aerial photography was collected in support of this project. A total of 46 soil investigations were made, and three pits were dug to collect samples for lab data. Soils in the Grand Portage area consist primarily of clayey materials, deposited as glacial ice was subsiding, roughly 10,000 years ago. There are a few areas of steep terrain, where igneous dikes cut through the region. Soils on these landforms are sandy to loamy, and shallow to bedrock. The soil survey includes 28 data map units, and 32 soil series. Tabular data for the soils includes physical and chemical properties, as well as interpretations of applicability and limitations of the soils for a wide variety of land uses.
- Type
- Published Report
- Authors
- Gafvert, Ulf
- Date of Issue
- 2009-06-23
- Publisher
- Natural Resource Program Center
- Units
- GLKN , GRPO , NRSS
- Keywords
- geologic inventory, Grand Portage National Monument, Lake County, Minnesota, Soil Inventory, Soils