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GMS-126, Geologic Map of the Dog River and northern part of the Badger Lake 7.5' Quadrangles, Hood River County, Oregon, by Jason D. McClaughry, William E. Scott, Carlie J.M. Duda, and Richard M. Conrey; 154 p. report; 1 map plate (48 x 52 inches), scale 1:24,000; Esri format geodatabase; shapefiles; metadata; spreadsheets.

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INTRODUCTION [from the report]

The Dog River and northern part of the Badger Lake 7.5' quadrangles encompasses an area of ~201 km2 (77.6 mi2) of the High Cascades of north-central Oregon, lying across the eastern slopes of Mount Hood volcano (Figure 1-1; Plate 1; referred to herein as Dog River–Badger Lake area). Mount Hood, known as Wy’east to Native Americans, is Oregon’s tallest peak (3,427 m [11,241 ft]). The volcano has erupted episodically for the past 500,000 years, experiencing two major eruptive periods during the last 1,500 years (Scott and others, 1997a; Scott and others, 2003; Scott and Gardner, 2017). Cascade Range volcanism and structural development in the area dates back longer, with eruptive activity dating from latest Miocene to recent time; part of that volcano-tectonic record is detailed by new high-resolution geologic mapping presented here.

The geology of the Dog River–Badger Lake area was mapped by the Oregon Department of Geology and Mineral Industries (DOGAMI) between 2017 and 2020, in collaboration with geoscientists from the U. S. Geological Survey Cascade Volcano Observatory (USGS CVO) and Hamilton College, New York. The primary objective of this investigation is to provide an updated and spatially accurate geologic framework for the Dog River–Badger Lake area as part of a multi-year study of the geology of the larger Middle Columbia Basin (Figure 1-1, Figure 1-2). Additional key objectives of this project are to: 1) determine the geologic history of volcanic rocks in this part of the northern Oregon Cascade Range, including lava flows and volcaniclastic deposits erupted from Middle Pleistocene to Holocene Mount Hood volcano; 2) provide significant new details about the structure and fault history along the northern segment of the High Cascades intra-arc graben (Hood River graben); and 3) better understand geologic hazards in the region, related to earthquakes, volcanoes, and landslides. New detailed geologic data presented here also provides a basis for future geologic, geohydrologic, and geohazard studies in the greater Middle Columbia Basin. Detailed geologic mapping in this part of the Middle Columbia Basin is a high priority of the Oregon Geologic Map Advisory Committee (OGMAC), supported in part by grants from the STATEMAP component of the USGS National Cooperative Geologic Mapping Program (G17AC00210, G19AC00160). Additional funds were provided by the State of Oregon.

The core products of this study are this report, an accompanying geologic map and cross sections (Plate 1), an Esri ArcGIS™ geodatabase, and Microsoft Excel® spreadsheets tabulating point data for geochemistry, geochronology, magnetic polarity, orientation points, and well data. The geodatabase presents the new geologic mapping in a digital format consistent with the USGS National Cooperative Geologic Mapping Program Geologic Map Schema (GeMS) (U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020). This geodatabase contains spatial information, including geologic polygons, contacts, structures, geochemistry, geochronology, magnetic observation, orientation points, and well data, as well as data about each geologic unit such as age, lithology, mineralogy, and structure. Digitization at scales of 1:8,000 or better was accomplished using a combination of high-resolution lidar topography and imagery. Surficial and bedrock geologic units contained in the geodatabase are depicted on the Plate 1 at a scale of 1:24,000. Both the geodatabase and geologic map are supported by this report describing the geology in detail.

 

GEOGRAPHIC INFORMATION SYSTEM (GIS) DATA
Geodatabase is Esri® version 10.7 format.
Metadata is embedded in the geodatabase and in the shapefiles and is also provided as separate .xml formatted files.

DRBL2020_GeMS_v10.7.gdb (geodatabase only, with embedded metadata; 4 MB zip file)
Feature dataset classes
Name Description Metadata
bundle (zip)
CartographicLines Vector lines that have no real-world physical existence and do not participate in map-unit topology. The feature class includes cross section lines used for cartography for the Geologic Map of the Dog River and northern part of the Badger Lake 7.5' Quadrangles Hood River County, Oregon. .xml
ContactsAndFaults This feature class represents the boundaries between map units as depicted in the MapUnitPolys feature class, and faults within map units, all held within this geodatabase. The attributes of this feature allow the authors to indicate their confidence in the location and existence of geologic contacts and faults. This geodatabase contains cartographic representations for line symbols from Sections 1 and 2 of FGDC Digital Cartographic Standard for Geologic Map Symbolization (FGDC Document Number FGDC-STD-013-2006). .xml
DataSourcePolys This feature class contains polygons that delineate data sources for all parts of the geologic map. These sources may be a previously published map, new mapping, or mapping with a certain technique. For a map with one data source, for example all new mapping, this feature class would contain one polygon that encompasses the map area. .xml
GeochemPoints New and compiled XRF-geochemical analyses are included in the geodatabase, a separate Microsoft Excel® spreadsheet named PCB2020_Geochemistry.xls is also provided. Descriptive rock unit names for igneous rocks are based on normalized major element analyses plotted on the total alkalis (Na2O + K2O) versus silica (SiO2) diagram (TAS).This feature class does not have any cartographic representations associated with its features. Please see the accompanying report for more detailed information on the map units and their attributes. .xml
GeologicLines This feature class identifies structural folds, lineaments, joints, and dikes located within the project study area. Features within this dataset are represented as vector lines. The vector line shows the approximate location and the angle down from horizontal of the plane that bisects the fold, as well as the general angle that the layers of rock dip away from that plane. This geodatabase contains cartographic representations for line symbols from Section 5 of FGDC Digital Cartographic Standard for Geologic Map Symbolization (FGDC Document Number FGDC-STD-013-2006). .xml
MagneticPoints Magnetics point data are provided as a GIS feature class within a GeMS File Geodatabase and as a Microsoft Excel® spreadsheet named DRBL2020_Magnetics.xls. This feature class does not contain or is associated with cartographic representations for point symbols from the FGDC Digital Cartographic Standard for Geologic Map Symbolization (FGDC Document Number FGDC-STD-013-2006). .xml
MapUnitPoints This feature class represents map unit points used in conjunction with the ContactsAndFaults feature class to generate the MapUnitPolys feature class. .xml
MapUnitPolys  Polygons that record the distribution of map units on the particular map horizon. The polygons in this feature class are units of consolidated (solid) rock that underlie soils or other unconsolidated materials and unconsolidated earth materials such as soils and sediments. A polygon feature class representing the geologic map units as defined by the authors. .xml
OrientationPoints The points in this feature class represent the orientation measurements of structure planes(bedding attitudes, foliation attitudes, slip vectors measured at a point, etc.) within the area of study. .xml
Stations This point feature class contains 1:24,000-scale point locations for the Geologic Map of the Dog River and northern part of the Badger Lake 7.5' Quadrangles, Hood River County, Oregon. Includes visited locations for samples, significant/critical sites, locations of photographs and geologic units. .xml
WellPoints This feature class represents point locations where wells were located in the Geologic Map of the Dog River and northern part of the Badger Lake 7.5′ Quadrangles Hood River County, Oregon. Also included in this feature class are wells in the Mount Hood South quadrangle outside the study area. Includes data obtained by the authors from the Oregon Department of Water Resources (OWRD). Please see the accompanying report for more detailed information. .xml
Tables
DataSources This part of the GeMS file geodatabase contains a table called DataSources. It lists the references used to construct the Geologic Map of the Dog River and northern part of the Badger Lake 7.5' Quadrangles Hood River County, Oregon. The tables attributes include sources of data, descriptions, techniques, etc., that can be used to associate features and other table entries with a data source. .xml
DescriptionOfMapUnits This table in the NCGMP09 file geodatabase captures the content of the Description of Map Units (DMU), or equivalent to the List of Map Units and associated pamphlet text, included in the Geologic Map of the Dog River and northern part of the Badger Lake 7.5' Quadrangles Hood River County, Oregon. .xml
GeoMaterialDict This table in the GeMS file geodatabase contains the terms and definitions for the NGMDB Geologic Materials Classification which is intended to characterize a map unit with a generalized category based on lithologic and genetic criteria; it applies to the map unit as a whole. .xml
Glossary This table in the GeMS file geodatabase is a glossary of the terms or words found in or related to the geodatabase and the companion pamphlet for the Geologic Map of the Dog River and northern part of the Badger Lake 7.5' Quadrangles Hood River County, Oregon. .xml
 

SHAPEFILES (GIS shapefiles only bundle, with metadata; 652 KB, zip file)

DRBL2020_GeochemPoints.shp
DRBL2020_GeochronPoints.shp
DRBL2020_MagneticPoints.shp
DRBL2020_OrientationPoints.shp
DRBL2020_RefMap.shp
DRBL2020_StationsPoints.shp
DRBL2020_WellPoints.shp
DRBL2020_XsectionLines.shp
See descriptions above. .xml
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MAP PLATE (georeferenced PDF)

Plate 1. Geologic Map of the Dog River and northern part of the Badger Lake 7.5' quadrangles, Hood River County, Oregon, scale 1:24,000

Note: The map plate PDF is in geospatial PDF format, allowing you to turn on and off layers in the map frame and to find geographic coordinates in the PDF.