Larsen, J.C.
Assmus, K.C.
Causey, J.D.
Zientek, M.L.
2004
Rectified images of selected geologic maps of the northern Rockies area, Idaho, Montana, Washington, and Wyoming
raster digital data
U.S. Geological Survey Data Series
DS 106
Menlo Park, CA
U.S. Geological Survey
This rectified map image was created for the purpose of directly comparing an image of the original geologic map with other geospatial information. The rectified image includes the map and coordinate labels; titles, text, explanations, cross sections, and collar information were cropped.
This rectified image was created to allow the direct comparison of a published geologic map with other geospatial information in a geographic information system. The rectified image can be compared to vector representations of the same map to ensure that features are coded correctly and that all geologic information on the published map was captured in the vector files. The image also quickly illustrates how the author intended to symbolize the map.
Dist_belt_S_rect.sid is a rectified (georeferenced) MrSID image format file that was derived from an unpublished rectified TIFF image format file which, in turn, was created by scanning a paper copy of the original map by Mudge and Earhart (1983).
1983
Publication date of original map
None planned
-113.602547
-111.954484
48.032764
46.962861
305890.281893
427415.630483
5320181.486158
5203978.494732
None
geologic map
rectified raster image
digital image
georeferenced image
northern disturbed belt
Lewis and Clark County
Teton County
Pondera County
Glacier County
Flathead County
Cascade County
Powell County
Montana
USA
none
This digital image is not meant to be used or displayed at any scale larger than 1:250,000 (for example, 1:2,000).
Michael L. Zientek
U.S. Geological Survey
Geologist
mailing and physical address
904 W. Riverside, Room 202
Spokane
WA
99201-1087
(509) 368-3105
mzientek@usgs.gov
N/A
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcGIS 8.1; Adobe Photoshop Elements 2.0; LizardTech Geospatial Encoder 1.4; 3001, Inc. RAster Georeference Enabler (RAGE) tool 1.1.17.
Raster Dataset
The title, text, explanation, cross section, index maps and collar information of the original data source map are cropped or partially cropped in the georeferenced MrSID image.
Dist_belt_S_rect.sid has a horizontal accuracy of no better than 51 meters, which reflects the resolution of the reference file, hwquad100g.shp. The rectified image was tested to ensure it was projected and georeferenced properly by overlying it with hwquad100g.shp, a polygon shapefile of 1:100,000-scale quadrangles. Hwquad100g.shp was derived from the mathematically generated file, topoq100.shp, which was obtained from ESRI Data & Maps 2002 (CD 2) and is distributed as part of ESRI software. The positional accuracy for topoq100.shp, and thus hwquad100g.shp is 51 meters. By visual inspection at the scale of publication, the image fell within the boundaries of the corresponding 1:100,000-scale quadrangles.
N/A
Mudge, M.R.
Earhart, R.L.
1983
Bedrock geologic map of part of the northern disturbed belt, Lewis and Clark, Teton, Pondera, Glacier, Flathead, Cascade, and Powell counties, Montana
map
U.S. Geological Survey Miscellaneous Investigations Series Map
I-1375
Reston, VA
U.S. Geological Survey
Sheet 2 of 2
250000
paper
1983
publication date
Mudge and Earhart (1983)
The full map extent of the original paper map and marginal coordinate information, excluding the title, explanation, cross-sections, index maps, and other collar information, was used in this data set. Even though Mudge and Earhart's (1983) geologic map was published at a scale of 1:125,000, the geology was actually mapped on a 1:250,000-scale topographic map base that had been enlarged to 1:125,000. Thus the resolution of the mapping is only as good as the base map component.
The original paper map was scanned and saved as a 300 dpi, 24-bit color TIFF image using a Colscan scanner at the TeckCominco Spokane Office. The scanned TIFF image was cropped to include the map and marginal coordinate information. The resulting TIFF image was rotated and color balanced using Adobe Photoshop Elements 2.0. A tic file coverage of UTM projected latitude and longitude coordinate points (tic120602) was used to rectify the image with ArcMap 8.1. Latitude and longitude intersections displayed on the TIFF image were tied to their respective locations (tics) in the tic120602utm coverage. The rectified TIFF was then opened in LizardTech Geospatial Encoder 1.4 and converted to MrSID image format using a 10:1 compression ratio. The resulting files include the image data (*.sid) and a world file (*.sdw). ArcGIS did not recognize coordinate information for these files, so 3001, Inc.'s RAster Georeference Enabler (RAGE) tool was used to associate coordinate information with the MrSID image. The RAGE tool is available from URL = http://www.3001data.com/3001website/main/downloads_files/rage/geotiff_header_repair.htm.
2003
Mudge and Earhart (1983)Dist_belt_S_rect.sid
Raster
Pixel
10720
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FALSE
Wavelet
pixel codes
MrSID
Upper Left
TRUE
10.839831
10.839831
Universal Transverse Mercator
12
0.999600
-111.000000
0.000000
500000.000000
0.000000
row and column
10.839831
10.839831
meters
North American Datum of 1927
Clarke 1866
6378206.400000
294.978698
GCS_North_American_1927
NAD_1927_UTM_Zone_12N
Band_1
256
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ObjectID
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ESRI
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ESRI
Sequential unique whole numbers that are automatically generated.
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U.S. Geological Survey, Spokane Field Office
Michael L. Zientek
mailing and physical address
904 W. Riverside, Room 202
Spokane
WA
99201-1087
(509) 368-3105
mzientek@usgs.gov
DS 106
The U.S. Geological Survey (USGS) provides these geographic data "as is". The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by USGS.
This digital bedrock geologic map is not meant to be used or displayed at any scale larger than 1:250,000 (for example, 1:2,000).
MrSID
1.4
The SID file contains the image data. The SDW file contains the world file. The AUX file contains auxiliary information such as map projection, pointer to pyramid file, etc. The XML file contains the metadata describing the data set <data set name>.sid.xml.
MrSID
27.732
27.732
N/A
Software that supports MrSID image format is required to use this data.
20040915
Jeremy C. Larsen
Information Systems Support (under contract to the U.S. Geological Survey)
Contractor
mailing and physical address
904 W. Riverside, Room 202
Spokane
WA
99201
(509) 368-3118
jlarsen@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
none
none
http://www.esri.com/metadata/esriprof80.html
ESRI Metadata Profile
en
Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800
-113.602547
-111.954484
48.032764
46.962861
1
Dist_belt_S_rect.sid
305890.281893
5320181.486158
5203978.494732
427415.630483
1
002
Local Area Network
file://\\Qsnap1\HWTRS\HW_RegionalGeology\Map_Images_Final\Report_working\OF04-xxx\GEOREFERENCED\Dist_belt_S_rect.sid
27.732
Raster Dataset
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dataset
ISO 19115 Geographic Information - Metadata
DIS_ESRI1.0
NAD_1927_UTM_Zone_12N
2
1
10.83983
11211
10.83983
10720