Katmai National Park and Preserve and Alagnak Wild River: Geologic Resources Inventory report
Hults CP and Fierstein J. 2016. Katmai National Park and Preserve and Alagnak Wild River: Geologic Resources Inventory report. Natural Resource Report. NPS/NRSS/GRD/NRR—2016/1314. National Park Service. Fort Collins, Colorado
The Geologic Resources Inventory (GRI) is one of 12 inventories funded by the National Park Service (NPS) Inventory and Monitoring Program. The Geologic Resources Division of the NPS Natural Resource Stewardship and Science Directorate administers the GRI. This GRI report was written for resource managers to support science-informed decision making. It may also be useful for interpretation. The report was prepared using available geologic information. Chapters of the report discuss distinctive geologic features and processes, describe the geologic history leading to the present-day landscape, highlight geologic issues facing resource managers, and provide information about the associated GRI geologic map data. A poster (Plate 1, in pocket) illustrates these data. The largest volcanic eruption of the 20th century exploded 6 June 1912, from a new volcanic vent, Novarupta, creating the Katmai caldera and the Valley of Ten Thousand Smokes. The magnitude and volume of the eruption at Novarupta in 1912 were exceptional, far larger than any other historical eruption in North America. Katmai National Monument was established in 1918 to preserve the volcanic features formed by this eruption, and provide for the scientific study of these features and how the landscape recovers from the eruption. The monument was greatly expanded and redesignated as Katmai National Park and Preserve in 1980. Alagnak Wild River was also established in 1980 to protect the Alagnak River system, which is an important sockeye (red) salmon fishery, and critical to the economy, culture, recreation, and history of southwest Alaska. In this report the term “Katmai area” refers to Katmai National Park and Preserve, Alagnak Wild River, and the immediate surrounding area on the geologic map (see Plate 1, in pocket).
- Type
- Published Report
- Authors
- Hults, Chad; Fierstein, Judy
- Date of Issue
- 2016-09
- Publisher
- National Park Service
- Units
- ALAG , GRD , GRI , KATM , NRSS , SWAN
- Keywords
- 1912 Eruption and Formation of the Valley of Ten Thousand Smokes, Abandoned Mineral Lands (AML), ALAG, Alagnak Wild River, Alaska, and Protection, Coastal Features, Coastal Issues, Faults and Folds, Fluvial Erosion, Geohazards, Geologic Features, Geologic Features and Processes, Geologic History, Geologic Processes, Geologic Resource Management Issues, Geologic Resources Division, Geologic Resources Inventory, Geothermal Features, Geothermal Features Inventory and Monitoring, Glaciation1, Glacier Changes, GRD, GRI, KATM, Katmai National Park and Preserve, Map Units, Mesozoic Bedrock, Modern Glacier Features and Changes, Modern Surficial Deposits and Processes, Monitoring, National Park Service, NPS, Paleontological Resource Inventory, Permafrost Features, Potential Petroleum Development, Preservation of Katmai’s Natural Features for Inspiration and Study, Resource Management, Soils and Permafrost, Terrane Translation and Accretion, Tertiary Sedimentary and Igneous and Bedrock, Volcanoes
- Subjects
- Ecological Framework: Geology and Soils | Geomorphology | Glacial Features and Processes , Ecological Framework: Geology and Soils | Geomorphology | Hillslope Features and Processes , Ecological Framework: Geology and Soils | Geomorphology | Coastal/Oceanographic Features and Processes , Ecological Framework: Geology and Soils | Geomorphology | Stream/River Channel Characteristics , Ecological Framework: Geology and Soils | Geomorphology | Lake Features and Processes , Ecological Framework: Geology and Soils | Subsurface Geologic Processes | Geothermal Features and Processes , Ecological Framework: Geology and Soils | Subsurface Geologic Processes | Cave/Karst Features and Processes , Ecological Framework: Geology and Soils | Subsurface Geologic Processes | Volcanic Features and Processes , Ecological Framework: Geology and Soils | Subsurface Geologic Processes | Seismic Activity , Ecological Framework: Geology and Soils | Paleontology | Paleontology