Digital Raster Graphic: TETON VILLAGE , WY

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: USGS Earth Resources Observation & Science Center (EROS)

Publication_Date: 19981101

Title: Digital Raster Graphic: TETON VILLAGE , WY

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: USGS Digital Raster Graphics

Issue_Identification:

Digital Raster Graphics (DRGs) are scanned color images of USGS topographic maps.

Publication_Information:

Publication_Place: Sioux Falls

Publisher: USGS Earth Resources Observation & Science Center (EROS)

Other_Citation_Details: Earth Science Information Centers (ESIC) offer

nationwide information and sales service for USGS map products and earth science
publications. For additional information, contact any USGS Earth Science Information
Center (ESIC), or call 1-888-ASK-USGS.

Description:

Abstract:

A digital raster graphic (DRG) is a scanned image of a U.S. Geological

Survey (USGS) topographic map. The scanned image includes all map collar
information. The image inside the map neatline is georeferenced to the surface of
the Earth. The DRG can be used to collect, review, and revise other digital data
especially digital line graphs (DLG). When the DRG is combined with other digital
products, such as digital orthophoto quadrangles (DOQ) or digital elevation models
(DEM), the resulting image provides additional visual information for the extraction
and revision of base cartographic information. The USGS is producing DRGs of the
1:24,000-, 1:25,000-, 1:63,360- (Alaska), 1:100,000-, and 1:250,000-scale topographic
map series.
data collection and revision. The DRG can help assess the completeness of digital
data from other mapping agencies. It can also be used to produce "hybrid"
products. These include combined DRGs and DOQs for revising and collecting digital
data, DRGs and DEMs for creating shaded-relief DRGs and combinations of DRG, DOQ, and
DLG data. Although a standard DRG is an effective mapping tool, its full potential
for digital production is realized in combination with other digital data.
produced by the U.S. Geological Survey (USGS) through an Innovative Partnership
agreement with The Land Information Technology Company Ltd. of Aurora, CO. This
series includes DRG's of USGS standard series quadrangle maps of the United States,
its Trusts, and Territories.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19970318

Ending_Date: 19970318

Currentness_Reference: ground condition

Status:

Progress: In work

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -110.875

East_Bounding_Coordinate: -110.75

North_Bounding_Coordinate: 43.625

South_Bounding_Coordinate: 43.5

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD Parameter Keywords

Theme_Keyword: aerial photograph

Theme_Keyword: cartography

Theme_Keyword: cities

Theme_Keyword: county boundaries

Theme_Keyword: earth

Theme_Keyword: EDC

Theme_Keyword: EROS

Theme_Keyword: hydrography

Theme_Keyword: lakes

Theme_Keyword: manmade features

Theme_Keyword: mapping

Theme_Keyword: orthophoto

Theme_Keyword: orthophotoquad

Theme_Keyword: photography

Theme_Keyword: railroads

Theme_Keyword: rivers

Theme_Keyword: roads

Theme_Keyword: topography

Theme_Keyword: U.S. Public Land Survey System

Theme_Keyword: USGS

Theme_Keyword: water

Theme_Keyword: EARTH SCIENCE --> LAND SURFACE --> Topography --> Landforms

Theme_Keyword: EARTH SCIENCE --> LAND SURFACE --> Topography --> Relief

Theme_Keyword: U.S. Public Land Survey System

Theme_Keyword: EARTH SCIENCE --> LAND SURFACE --> Topography --> Contours

Place:

Place_Keyword_Thesaurus: GCMD Location Keywords

Place_Keyword: North America

Place_Keyword: United States

Place_Keyword: US

Temporal:

Temporal_Keyword_Thesaurus: None

Temporal_Keyword: true ground conditions

Access_Constraints: None

Use_Constraints:

Acknowledgement of the Geological Survey would be appreciated in

products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey Earth Resources Observation

and Science (EROS) Center

Contact_Position: Customer Service

Contact_Address:

Address_Type: mailing and physical address

Address: U.S. Geological Survey

Earth Resources Observation and Science (EROS) Center
47914 252nd Street

Contact_Voice_Telephone: 1-888-ASK-USGS

Contact_Electronic_Mail_Address: lta@usgs.gov

Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT

Contact_Instructions: Online Ordering: Once you have filled out and submitted

the online ordering form found at http://earthexplorer.usgs.gov, it is forwarded to
Customer Services at the USGS National Center for Earth Resources Observation &
Science (EROS) via the Earth Explorer system. EROS uses a secure credit card server
that will encrypt your sensitive information and pass it from your browser to the
EROS web server. Mail Ordering: First obtain the ordering information from Earth
Explorer. Mail this information, along with your payment (check or purchase/money
order), to USGS, EROS,

Security_Information:

Security_Classification_System: none

Security_Classification: unclassified

Security_Handling_Description: none

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The DRG is an 8-bit color image that employs a color palette to ensure uniform colors throughout a particular DRG series. All DRG's within a series must have the same RGB value.

Logical_Consistency_Report: The USGS DRG is produced with the intention of

replicating as close as possible the original source map. Users of the DRG will
note, however, that a certain amount of "noise" can be discerned when small
areas are blown up or viewed under zoomed-in conditions. This noise is in the form
of random specks or pixels of color and halos due to any number of factors, such as
the quality of the source, the use of screens and patterns on the litho, and the
unevenness of ink due to saturation and absorption. Discontinuities or breaks in
linear features may also be present and are due to improper calibration or usage of
the scanner, the condition of the source, and resampling. Descreening, quantizing,
and noise filtering are methods used to reduce noise, which, besides creating a more
aesthetically pleasing image, have the added benefit of reducing the size of the
image file. Removal of lithographic screen patterns is preferred but not required.

Completeness_Report: Image completeness is checked by visually inspecting a

sampling of DRGs. Each selected DRG is examined for gaps (missing data) in the main
body of the map, the map collar, the overedge areas, and any insets.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: A random sampling of DRGs is accuracy

tested. The accuracy test is performed by comparing the positions of UTM grid
intersections on the source graphic against the corresponding location on the digital
image. A visual inspection determines whether those coordinates fall within the
pixels that define a grid tick. DRGs duplicate the horzontal accuracy of its source.
accuracy of the source maps. Most USGS printed maps contain the National Map
Accuracy Standards (NMAS) note in the collar area. The NMAS states that for maps on
publication scales of 1:20,000 or smaller, no more than 10 percent of the points
tested shall be in error by more than 1/50 inch measured on the publication scale.
Test points must be "well-defined", that is, easily visible or recoverable
on the ground. For DRGs this accuracy statement applies only to that area of the DRG
that falls within the neatline of the source map (excluding inset areas). Overedge
areas falling outside the transformation boundary area (the map neatline) can exhibit
anomalies or discrepancies. These anomalies also will appear in the map inset areas
and in the map collar. For maps without the NMAS note, the horizontal accuracy is
unknown. However, the DRG will retain the accuracy of the source map.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: The vertical positional accuracy of a DRG

is referenced in the DRG collar

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: unknown

Title: USGS Topographic maps

Geospatial_Data_Presentation_Form: map

Other_Citation_Details: The source for DRGs are the standard quadrangle

format USGS topographic maps as described in the Federal Geographic Data Committee
"Manual of Federal Geographic Data Products". They include 1:20,000-,
1:24,000-, 1:25,000-, 1:30,000-, 1:63,360-, 1:100,000- and 1:250,000-scale
topographic maps. Included in the 1:24,000- and 1:25,000-scale series are
provisional (P) maps and color orthophotomaps.

Source_Scale_Denominator: 24000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19910701

Ending_Date: 19910701

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: USGS Topo

Source_Contribution: The standard area of coverage of a DRG is the entire area

printed on a USGS standard series topographic map including the map collar, any
overedge areas, and insets. These standard series maps include:

7.5-minute map series: Conterminous United States, Hawaii, and limited areas of
Alaska at 1:24,0000 and 1:25,000 scale.

7.5- by 15-minute map series: Covers limited areas of the conterminous United States
at 1:25,000 scale.

30- by 60-minute map series: Conterminous United States

Process_Step:

Process_Description: Production of a DRG begins with the scanning of a paper

7.5-minute topographic map (map1) on a high-resolution scanner. Scanning resolutions
range from 500-1,000 dpi with an output file of 160-300 Mb in size. Removal of
screens (descreening) and color quantization to reduce the number of colors also
takes place during the scanning phase.

The raw scan file is then transformed and georeferenced using UTM coordinates of the
sixteen 2.5-minute grid ticks, which are obtained using the in-house produced program
COORDAT and stored in a ground control file. Those sixteen 2.5-minute ticks are
interactively visited and assigned their respective UTM coordinates. The USGS program
XSHAPES4 then performs a piecewise linear rubber sheet transformation.

An output resolution of 2.4 meters (8.2 feet) is chosen to resample the file to 250
dpi. The image file is converted to a TIFF 6.0 image and further reduced by
converting the file to a run length encoded PackBits compression (type 32773).

The color palette of the compressed DRG is then standardized by replacing the
original RGB values assigned during the scanning process with standard RGB value
combinations using the in-house produced TIFFREMAP program.

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type:

Row_Count 6702 Column_Count 4777

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Universal_Transverse_Mercator:

UTM_Zone_Number: 12

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -111.000

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000

False_Northing: 0.0

Planar_Coordinate_Information:

Coordinate_Resolution: Abcissa_Resolution: 2.438400000000 Ordinate_Resolution

Geodetic_Model:

Horizontal_Datum_Name: North American Datum 1927

Ellipsoid: Clarke 1866

Semi-major_Axis: 6378206.4

Denominator of Flattening Ratio: 294.98

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview: Each raster entity or pixel contains a digital

number referencing a color palette of RGB values. Pixel resolution X is 2.4384 and
pixel resolution Y is 2.4384

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey Earth Resources Observation and Science (EROS) Center

Contact_Person: Customer Services Representative

Contact_Address:

Address_Type: mailing and physical address

Address:

Customer Services, U.S. Geological Survey
Earth Resources Observation and Science (EROS) Center
47914 252nd Street

City: Sioux Falls

State_or_Province: SD

Postal_Code: 57198

Country: USA

Contact_Voice_Telephone: 1-888-ASK-USGS

Contact_Electronic_Mail_Address: lta@usgs.gov

Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT

Contact_Instructions: <URL:http://edc.usgs.gov/eros-home.html>

Distribution_Liability: Although these data have been processed successfully on

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Tagged Image File Format (TIFF)

Format_Version_Number: version 6.0

Format_Specification: Download WinCATS USGS DRG and DLG-O & DRG

viewing software available from USGS.

Fees: None.

Ordering_Instructions: Dataset searching and ordering capabilities are

available though EarthExplorer at: http://earthexplorer.cr.usgs.gov/
http://eros.usgs.gov/#/About_Us/Customer_Service/Delivery_Times

Technical_Prerequisites: Adequate computer capability is the only technical

Metadata_Reference_Information:

Metadata_Date: 20001028

Metadata_Review_Date: 20111028

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey Earth Resources Observation and Science (EROS) Center

Contact_Position: Archive Management

Contact_Address:

Address_Type: mailing and physical address

Address: U.S. Geological Survey

Address: Earth Resources Observation and Science (EROS) Center

Address:

City Sioux Falls
State_or_Province SD
Postal_Code 57198-0001
Country USA

Contact_Voice_Telephone: 1-888-ASK-USGS

Contact_Electronic_Mail_Address: lta@usgs.gov

Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998, Version 2

Metadata_Time_Convention: local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Security_Information:

Metadata_Security_Classification_System: None

Metadata_Security_Classification: Unclassified

Metadata_Security_Handling_Description: None