Metadata for Quarter-Quadrangles of Montana, Idaho, and Wyoming, 2004 Metadata for Quarter-Quadrangles of Montana, Idaho, and Wyoming, 2004
Identification Information:
Citation:
Originator: Montana State Library
Publication date: 2004
Title: Quarter-Quadrangles of Montana, Idaho, and Wyoming, 2004
Publication place: Helena, Montana
Publisher: Montana State Library
Other citation details:
The former name of the data set on the NRIS web site was "qquad24"
Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Quads_quarter_24k.zip

Abstract:
This layer contains 3.75-minute quadrangles (each of which covers one quarter of a U.S. Geological Survey 7.5-minute topographic map) for Montana, Idaho, and Wyoming. The feature attributes include the status of the State Library's digital Orthophoto holdings and USGS quadrangle names. These boundaries show the NAD83 location of the graticule lines, rather than the NAD27 lines that form USGS quadrangle boundaries.

Time period of content:
Calendar date: 2004
Currentness reference: publication date
Status:
Progress: Complete
Maintenance and update frequency: None Planned
Access constraints: None
Use constraints:
The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Point of contact:
Montana State Library
PO Box 201800
Helena, Montana 59620-1800


Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov


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Spatial Data Organization Information:
Point and vector object information:
SDTS object type: G-polygon
SDTS object count: 25244
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Spatial Reference Information:
Horizontal coordinate system definition:
Grid coordinate system name: State Plane Coordinate System
SPCS zone identifier: 2500
Lambert conformal conic:
Standard parallel: 45.000000
Standard parallel: 49.000000
Longitude of central meridian: -109.500000
Latitude of projection origin: 44.250000
False easting: 600000.000000
False northing: 0.000000
Planar distance units: meters
Geodetic model:
Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222
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Entity and Attribute Information:
Entity type label: quads_quarter_24k
Entity type definition: Point feature class

Attribute label: FID
Attribute definition: Shapefile sequence number

Attribute label: Shape
Attribute definition: Feature geometry

Attribute label: AREA
Attribute definition: Area of quarter-quadrangle in square meters

Attribute label: PERIMETER
Attribute definition: Perimeter of quarter-quadrangle in meters

Attribute label: DOQIDX_
Attribute definition: Sequence number from original coverage version of the data

Attribute label: NAME
Attribute definition:
Name of the USGS 7.5 minute quadrangle that contains this quarter-quadrangle

Attribute label: CODE
Attribute definition:
Numeric 7.5-minute quadrangle code of the quadrangle that contains this quarter-quadrangle
Attribute domain:
The first two digits are the latitude, and the next three digits are the longitude, of the nearest whole degree to the south and west of the quadrangle. The sixth and seventh digits are the row and column number (1-8) of the 7.5-minute quadrangle within the 1x1 degree latitude/longitude block.

Attribute label: QUARTER
Attribute definition:
Quarter-quadrangle (3.75-minute) identifier -- NE, NW, SE, or SW

Attribute label: DATE
Attribute definition:
Date of the first generation U.S. Geological Survey digital orthophoto quarter-quadrangle image of the area held at the State Library. The earliest images are from 1990 and the latest are from 2003. The date is set to 1/1/1800 for quadrangles the Libray has no image for.

Attribute label: DOQQSTATUS
Attribute definition: Status of the State Library quarter-quadrangle orthophoto.


Attribute
Value 		Definition of
Attribute Value
-1 The quadrangle is outside of Montana and the availability is not known
0 The digital orthophoto quarter-quadrangle is not available
3 The digital orthophoto quarter-quadrangle is available at the State Library
4 The digital orthophoto quarter-quadrangle is available at the State Library
5 The digital orthophoto quarter-quadrangle is available from the US Geological Survey, but not at the State Library

Attribute label: STATE
Attribute definition: Single-character State code
Attribute domain:
Any quarter-quadrangle that touches Montana has a code of M. Other quadrangles are coded I, U, or W depending on whether they are primarily in Idaho, Utah, or Wyoming. Codes for these other states are un-reliable -- check the STATECODE field

Attribute label: STATECODE
Attribute definition:
List of two-letter state abbreviations for all states touched by the 7.5-minute quadrangle
Attribute domain:
I believe these codes are derived from the states touched by the ENTIRE quadrangle that each quarter-quad is part of. The states are listed in order of how much area they cover in the quadrangle

Attribute label: DARKIMAGE
Attribute definition: DARKIMAGE


Attribute
Value 		Definition of
Attribute Value
-9999 No digital orthophoto quarter-quadrangle is available
0 The digital orthophoto quarter-quadrangle image has no black pixels, or the image is not available
1 The number of black pixels in the digital orthophoto quarter-quadrangle image is not known
Numbers greater than 1 Number of black pixels

Attribute label: SPC_SID
Attribute definition: State-Plane Coordinate MrSID image status


Attribute
Value 		Definition of
Attribute Value
0 The State Library does not have a MrSID version of this image in State Plane Coordinates
1 The State Library has a MrSID version of this image in State Plane Coordinates
2 This quarter-quadrangle is entirely covered by a lake and is not available

Attribute label: SPC_TIFF
Attribute definition: State-Plane Coordinate TIFF image status


Attribute
Value 		Definition of
Attribute Value
-1 The State Library does not have this image and it is outside of Montana
0 The State Library does not have this image and it is inside or close to Montana
1 or 2 This image is available at the State Library. There are two possible values because the images were formerly stored on two different disk systems.

Attribute label: UTM_SID
Attribute definition: UTM Coordinate MrSID image status


Attribute
Value 		Definition of
Attribute Value
0 The State Libary has not made a UTM MrSID image of this quadrangle
1 A UTM-Coordinate MrSID image of this quadrangle is available at the State Library
2 This quarter-quadrangle is entirely covered by a lake and is not available

Attribute label: UTM_BSQVOLNUM
Attribute definition:
Tape volume number of the DLT tape the State Library received this image from the US Geological Survey on. If the number is zero, the State Library received this image on CD or does not have it.

Attribute label: TAPECODE
Attribute definition:
This is the code the US Geological Survey used to identify the quadrangle on DLT tape.
Attribute domain:
This is similar to the CODE value, except that the last two digits are a sequence number (01-64), counted left to right, top to bottom, in the 1x1 degree latitude/longitude block.

Attribute label: DOQQYEAR
Attribute definition:
This is the year of the digital orthophoto quarter quadrangle photograph

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Distribution Information:
Distributor:
Montana State Library
PO Box 201800
Helena, MT 59620-1800


Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov


Resource description: Downloadable Data


Distribution liability:
The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.

Standard order process:
Digital form:
Format name: ESRI Shapefile
megabytes
Online option:
https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Quads_quarter_24k.zip
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Metadata Reference Information:
Metadata date: 01/07/2015
Metadata review date: 12/21/2005
Metadata contact:
Montana State Library
PO Box 201800
Helena, Montana 59620-1800


Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov


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