US Topo 7.5-minute maps for Maine 2011

Identification Information

Citation Information

Originator	U.S. Geological Survey
Publication Date	20110801
Title	US Topo 7.5-minute maps for Maine 2011
Geospatial Data Presentation Form	map, raster digital data
Publication Place	Rolla, MO and Denver, CO
Publisher	USGS - National Geospatial Technical Operations Center (NGTOC)

Abstract

Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features.

Purpose

This map depicts geographic features on the surface of the earth. It is a general purpose map for users who are not GIS experts. One intended purpose is to support emergency response at all levels of government. The geospatial data in this map are from selected National Map data holdings and other government sources.

Supplemental Information

GNIS Cell ID = 2330

Time Period of Content

Beginning Date	2011
Ending Date	2011
Currentness Reference	publication date

Status

Progress	Complete
Maintenance and Update Frequency	Irregular

Bounding Coordinates

West Bounding Coordinate	-71.125
East Bounding Coordinate	-66.875
North Bounding Coordinate	44.875
South Bounding Coordinate	42.875

Keywords

Theme	imageryBaseMapsEarthCover, EarthCover, Imagery and Base Maps (ISO 19115 Topic Category)
Theme	topographic, transportation, structures, geographic names, hydrography, orthoimage, contour, U.S. National Grid (None)
Place	US, United States, Maine (Geographic Names Information System)

Access Constraints

None

Use Constraints

None. However, users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Acknowledgment of the U.S. Geological Survey would be appreciated for products derived from these data.

Attribute Accuracy Report

Cartographic content is derived from USGS national geospatial databases. The data is owned and hosted by the USGS, but does not preclude using data sources owned and hosted by other organizations, provided that these sources have been approved by the USGS data program.

Logical Consistency Report

This product is a layered GeoPDF file. GeoPDF is a copyright format with implementation rights held exclusively by TerraGo Technologies. This design is based on use of specific commercial software systems therefore any changes to the software specifications and dependencies will be followed by the USGS and codified in the product standard.

Completeness Report

Each layer of the GeoPDF is extracted from the USGS national geospatial databases. These data are intended to be cartographically complete at a 1:24,000 scale.

Horizontal Positional Accuracy Report

This US Topo map product is compiled to meet National Map Accuracy Standards (NMAS). NMAS horizontal accuracy requires that at least 90 percent of well-defined points tested are within 0.02 inch of the true position. In this product, the projection line, grids, and orthoimage are believed to meet NMAS. Positional accuracy of the other data layers is less controllable because of diversity of data sources, and may not meet NMAS.

Vertical Positional Accuracy Report

The accuracy of the National Elevation Dataset (NED) is inherited from the source digital elevation models (DEMs). The overall absolute vertical accuracy expressed as the root mean square error (RMSE) is 2.44 meters. The measured vertical RMSE was converted to equivalent NMAS and NSSDA expressions. The accuracy is expressed in terms of the National Map Accuracy Standards (NMAS), which use a 90 percent confidence interval, and in terms of the National Standard for Spatial Data Accuracy (NSSDA), which uses a 95 percent confidence interval.

Citation Information

Originator	National Agriculture Image Program (NAIP) administered by the Aerial Photography Field Office (APFO) for the United States Department of Agriculture.
Publication Date	2009
Title	Orthoimagery
Geospatial Data Presentation Form	Raster digital data or Digital Orthorectified Image or NAIP Digital Ortho Photo Image
Other Citation Details	An orthorectified image is a layer in every product and is provided by the USDA-FSA-APFO from the National Agriculture Image Program (NAIP). This offers the USGS a nationally consistent image product, normally with a one meter resolution in natural color.
Online Linkage	http://www.fsa.usda.gov/

Source Scale Denominator

24000

Type of Source Media

digital data

Beginning Date

20090617

Ending Date

20090617

Source Currentness Reference

publication date

Source Citation Abbreviation

Imagery

Source Contribution

Image

Citation Information

Originator	TomTom
Publication Date	2011
Title	Transportation, commercial roads
Geospatial Data Presentation Form	vector digital data
Other Citation Details	Why we didn't use the MEGIS E911 data we will never know. Instead, the TomTom Multinet dataset, licensed to the USGS for use in US Topo (1:24,000-scale topographic maps in GeoPDF format). TomTom retains copyright to these data. The USGS license allows these data to be freely used and redistributed in US Topo instances, provided this copyright notice is retained. TomTom data are filtered and may be generalized by USGS for protrayal in this product. TomTom roads are not mixed with other road data sources within a 7.5-minute quadrangle, with the exception of U.S. Forest Service lands, where public domain data from the Forest Service are used.
Online Linkage	http://www.tomtom.com

Source Scale Denominator

24000

Type of Source Media

digital data

Beginning Date

2006

Ending Date

2011

Source Currentness Reference

publication date

Source Citation Abbreviation

Roads - TomTom

Source Contribution

Road centerlines, route numbers, road classification, street names

Citation Information

Originator	USFS
Publication Date	2009
Title	Transportation, USFS FSTopo roads
Geospatial Data Presentation Form	vector digital data
Other Citation Details	The FSTopo database was originally populated with Cartographic Feature File (CFF) data. CFF data were derived from the standard Forest Service Primary Base Series (PBS) or Single Edition Series (SES) map as part of the Forest Service National Geographic Information System Plan. PBS and SES maps were developed from the U.S. Geological Survey 1:24,000-scale, 7.5-minute topographic map series, with enhancements and regular revisions to satisfy Forest Service needs. Except in Alaska, where 1:63,360-scale maps are used, the original USGS 1:24,000-scale source maps were constructed to meet National Map Accuracy Standards, which require that 90 percent of all well-defined features shown on the map are within .02 inches of their true location. CFF data were collected using methods and the best technologies available to ensure that digitized elements were captured within .003 inches of corresponding elements shown on source maps. The USDA Geospatial Service and Technology Center (GSTC) uses the same data collection accuracy standard for additions and revisions to the data. Only maps in USDA Forest Service areas will contain USDA Forest roads.
Online Linkage	http://www.fs.fed.us/gstc/

Source Scale Denominator

24000

Type of Source Media

digital data

Beginning Date

2009

Ending Date

2009

Source Currentness Reference

publication date

Source Citation Abbreviation

Roads - USFS FSTopo

Source Contribution

Road centerlines, route numbers, road classification, street names

Citation Information

Originator	Federal Aviation Administration
Publication Date	2010
Title	Airports
Geospatial Data Presentation Form	vector digital data
Other Citation Details	Runway outlines are for Federal Aviation Administration (FAA)-recognized public and private airports in the United States. The 2008 FAA runway coordinates, FAA_RunwayID, and Airport Location Codes were used by the USGS to digitize runway outlines on recent NAIP orthoimagery. The digitized data were inspected for accuracy and completeness then loaded into the USGS national transportation database.
Online Linkage	http://www.faa.gov

Source Scale Denominator

24000

Type of Source Media

digital data

Beginning Date

2008

Ending Date

2010

Source Currentness Reference

publication date

Source Citation Abbreviation

Transportation - Airports

Source Contribution

runways

Citation Information

Originator	State and Federal Partners
Publication Date	2010
Title	Fire Stations
Geospatial Data Presentation Form	vector digital data
Other Citation Details	Any location where fire fighters are stationed or based out of, or where equipment that such personnel use in carrying out their jobs is stored for ready use. Fire fighting training academies or locations are included. Fire Departments which are Mobile Units and not having a permanent location, are included, in which case their location has been depicted at the city/town hall or at the center of their service area if a city/town hall does not exist. This dataset includes those locations primarily engaged in forest or grasslands fire fighting, including fire lookout towers if the towers are in current use for fire protection purposes. This dataset includes both private and governmental entities. Locations that serve only administrative function are excluded. Locations serving both administrative and operational functions are included.
Online Linkage

Source Scale Denominator

24000

Type of Source Media

digital data

Beginning Date

2006

Ending Date

2010

Source Currentness Reference

ground condition

Source Citation Abbreviation

Structures - Fire Stations

Source Contribution

Citation Information

Originator	U.S. Geological Survey
Publication Date	2011
Title	Geographic Names Information System (GNIS)
Geospatial Data Presentation Form	vector digital data
Other Citation Details	The National Geographic Names Database is a part of the Geographic Names Information System (GNIS) and represents the primary source for identifying official names. The system is maintained by the U.S. Geological Survey in cooperation with the U.S. Board of Geographic Names.
Online Linkage	http://geonames.usgs.gov/

Source Scale Denominator

24000

Type of Source Media

digital data

Beginning Date

2011

Ending Date

2011

Source Currentness Reference

publication date

Source Citation Abbreviation

Geographic Names

Source Contribution

Geographic feature names

Citation Information

Originator	U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners. National Hydrography Dataset is a component of a comprehensive base geospatial data model.
Publication Date	20090617
Title	Hydrography
Geospatial Data Presentation Form	vector digital data
Other Citation Details	The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. The high-resolution NHD was originally created using 1:24,000-scale data. State and Local Stewards are improving the data by incorporating local updates based on more current and more accurate source data. Water features in the real world are relatively dynamic and the differences at the time of data collection mean that water features may not register exactly to other layers. The hydrographic feature names contained in and displayed by the NHD are extracted and validated from the Geographic Names Information System (GNIS).
Online Linkage	http://nhd.usgs.gov/
Online Linkage	http://nhd.usgs.gov/gnis.html
Online Linkage	http://nhdgeo.usgs.gov/metadata/nhd_high.htm

Source Scale Denominator

24000

Type of Source Media

digital data

Beginning Date

20090617

Ending Date

20090617

Source Currentness Reference

publication date

Source Citation Abbreviation

Hydrography

Source Contribution

Hydrography features and feature names

Citation Information

Originator	International Boundary Commission
Publication Date	2006
Title	U.S.-Canada National Boundary
Other Citation Details	The international boundary dataset between Canada and the United States was provided by Maine Office of Geographic Information Systems (MEGIS), University of New Hampshire, Vermont Center for Geographic Information, Inc (VCGI). The dataset was collected from multiple source agencies such as the U.S. Geological Survey, U.S. Department of Commerce, Bureau of Census, Bureau of Parks and Lands, Coastal Island Registry (CIREG) and various state agencies. The data and attribution accuracy was tested by manual comparison of the source with hard copy printouts and/or symbolized display of digital files and corrected by each state GIS department for use at a scale not greater than 1:24,000.
Online Linkage	http://www.internationalboundarycommission.org/
Online Linkage	http://www.internationalboundarycommission.org/products.html#nad83

Type of Source Media

point digital data

Beginning Date

2006

Ending Date

2006

Source Currentness Reference

publication date

Source Citation Abbreviation

U.S. / Canada International Boundary

Source Contribution

International Boundary between Canada and the United States

Citation Information

Originator	U.S. Geological Survey, U.S. Department of Agriculture, and the Instituto Nacional de Estadística y Geografía of Mexico.
Publication Date	2006
Title	U.S.-Mexico National Boundary
Other Citation Details	The international boundary between Mexico and the United States, defined as a joint venture between the U.S. Department of Agriculture (USDA) and the Instituto Nacional de Estadística y Geografía of Mexico (INEGI), resulted in an unofficial United States-Mexico boundary dataset that was further enhanced by the U.S. Geological Survey's Border Environmental Health Initiative (BEHI). With the data frame scale set to 1:5,000 in ArcMap, the center of the Rio Grande/Río Bravo was digitized using the NAIP 2004 Imagery. In areas with dense stands of salt cedar (bounding box = UL -104.714 30.038, UR -104.664 30.037, LR -104.666 29.933, LL -104.717 29.934; NAD83), the center of the channel was difficult, and sometimes impossible, to easily determine. To determine the location of the boundary, the GIS analyst compared the location of the line in the INEGI 1:250K Limite feature class with the NAIP 2004 Imagery and adjusted the boundary to the image, thus, the delineation of the international boundary is less certain in these areas. The remaining part of the border was extracted from the INEGI 1:250K Limite feature class and appended to the line feature class created along the Rio Grande/Río Bravo. The U.S. Geological Survey reviewed the original USDA data against 2007 NAIP imagery and further edited 9 line segments in the Rio Grande areas to conform to National Map Accuracy Standards.
Online Linkage	http://borderhealth.cr.usgs.gov/projectindex.html
Online Linkage	http://extract.cr.usgs.gov/BorderHealth/Boundaries/Int_Boundary/International_Boundary_Shapefile.zip

Type of Source Media

vector digital data

Beginning Date

1972

Ending Date

2006

Source Currentness Reference

publication date

Source Citation Abbreviation

U.S. / Mexico International Boundary

Source Contribution

International Boundary between Mexico and the United States

Citation Information

Originator	U.S. Department of Agriculture (USDA) Forest Service - Washington Office Automated Lands Program (ALP).
Publication Date	2009
Title	USDA Forest Service Boundary
Other Citation Details	The forest service boundaries defined by the USDA Forest Service encompassing the National Forest System (NFS) lands within the original proclaimed National Forests, along with lands added to the NFS which have taken on the status of 'reserved from the public domain' under the General Exchange Act. The following area types are included: National Forest, Experimental Area, Experimental Forest, Experimental Range, Land Utilization Project, National Grassland, Purchase Unit, and Special Management Area. The nationwide Proclaimed Forest dataset was created by the USDA Forest Service, Washington Office Automated Lands Program (ALP) staff from collected source data created by the Regional Offices. Only maps in USDA Forest Service areas will contain USDA Forest boundaries.

Source Scale Denominator

24000

Type of Source Media

vector digital data

Beginning Date

2009

Ending Date

2009

Source Currentness Reference

publication date

Source Citation Abbreviation

USDA Forest Service Boundaries

Source Contribution

National Forest Service Boundaries

Citation Information

Originator	U.S. Census Bureau
Publication Date	2010
Title	State and Equivalent Boundary
Other Citation Details	The Census Bureau collects boundaries from state and county governments through the Boundary and Annexation Survey (BAS, http://www.census.gov/geo/www/bas/bashome.html), and publishes the results as TIGER files. The USGS uses the TIGER data without editing or alteration for US Topo.
Online Linkage	http://www.census.gov/geo/www/tiger/index.html
Online Linkage	ftp://ftp2.census.gov/geo/tiger/TIGER2010/STATE/2010/

Type of Source Media

vector digital data

Beginning Date

2010

Ending Date

2010

Source Currentness Reference

publication date

Source Citation Abbreviation

State Boundaries

Source Contribution

State and Equivalent Boundary

Citation Information

Originator	U.S. Census Bureau
Publication Date	2010
Title	County and Equivalent Boundary
Other Citation Details	The Census Bureau collects boundaries from state and county governments through the Boundary and Annexation Survey (BAS), and publishes the results as TIGER files. The USGS uses Census TIGER data without editing or alteration for US Topo.
Online Linkage	http://www.census.gov/geo/www/tiger/index.html
Online Linkage	ftp://ftp2.census.gov/geo/tiger/TIGER2010/COUNTY/2010/
Online Linkage	http://www.census.gov/geo/www/bas/bashome.html

Type of Source Media

vector digital data

Beginning Date

2010

Ending Date

2010

Source Currentness Reference

publication date

Source Citation Abbreviation

County Boundaries

Source Contribution

County and Equivalent Boundary

Citation Information

Originator	USGS - National Elevation Dataset is a component of a comprehensive base geospatial data model.
Publication Date	20050801
Title	Hypsography
Geospatial Data Presentation Form	Vector digital data
Other Citation Details	This contour featureclass was generated from the 1/3 arc-second version of the National Elevation Dataset (NED). The intended viewing scale for these features is 1:24,000. The contours are derived from a filtered elevation raster to achieve smoother arcs. The NED data were modified by the National Hydrography Dataset (NHD) flow lines and water bodies to facilitate improved integration between the hypsography and hydrography on USGS map products. These contours were generated primarily for use as a layer in GeoPDFs created in the US Topo digital mapping program. The raster data source of contours is the National Elevation Dataset (NED) 1/3 arc-second layer. The 1/3 arc-second NED contains resampled data from the 1/9 arc-second layer of NED. Secondary datasets include the high resolution flow lines, water bodies, and areas from the National Hydrography Dataset (NHD). The NHD layers are used in hydro-enforcement of the DEM prior to contour generation. The goals of the hydro-enforcement are to prevent contour lines from extending over the surface of water bodies and to align the contour reentrants with the NHD single-line streams. The NED raster cells are converted to points. Those points, along with the NHD flow lines are input into an interpolation tool to create a new surface. The NHD water bodies and areas are preprocessed to attach the minimum and maximum elevation to each polygon. From these precalculated values, an appropriate value is calculated by which to raise the elevation cells under the NHD polygons. The NHD polygons are then converted into rasters, which in turn will be used to generate a mosaic that includes the new raster surface. The mosaic is filtered to provide smoother contour lines. Contours are generated and depression and index contours are identified. There is no guarantee or warranty concerning the accuracy of the data. Users should be aware that temporal changes may have occurred since these data were collected and generated and that some parts of these data may no longer represent actual surface conditions. Hydro-enforcement and generalization can also significantly alter the spatial characteristics of the contours. Users should not use these data for critical applications without a full awareness of its limitations.
Online Linkage	http://ned.usgs.gov/

Source Scale Denominator

24000

Type of Source Media

digital data

Beginning Date

20050801

Ending Date

20050801

Source Currentness Reference

publication date

Source Citation Abbreviation

Hypsography

Source Contribution

Contours

Citation Information

Originator	U.S. Geological Survey
Publication Date	2011
Title	Land Cover - Woodland
Geospatial Data Presentation Form	Vector digital data
Other Citation Details	The Woodland is a derivative land cover product created using six national map layers: three National Land Cover Database (NLCD) 2001 raster layers (Tree Canopy, Imperviousness, and Land Cover); and three vector layers (National Hydrography Dataset, Transportation Roads, and Transportation Airports). The process begins with masking the NLCD 2001 Canopy Data with NLCD 2001 Imperviousness V1 (values from 1-100), and Land Cover V1 (value 11 = Open Water). The resulting raster data with canopy values of 20 and greater are converted to woodland vector polygons and smoothed via the Paek Algorithm. The woodland polygons are masked with buffered Transportation and Hydrography (NHD Areas and NHD Waterbodies excluding Swamp/Marsh). The resulting polygons are checked for scale appropriate size (minimum size of one acre), and the small woodland polygons as well as small clearings within the woodland polygons are deleted.
Online Linkage	http://nationalmap.usgs.gov

Source Scale Denominator

24000

Type of Source Media

digital data

Beginning Date

2001

Ending Date

2011

Source Currentness Reference

publication date

Source Citation Abbreviation

Land Cover - Woodland

Source Contribution

National Landcover Dataset; National Hydrography Dataset; National Transportation Dataset

Citation Information

Originator	U.S. Geological Survey
Publication Date	Not Applicable
Title	Grids and Coordinate System
Other Citation Details	U.S. National Grid, UTM grid, and State Plane Coordinate System values are displayed along the map projection.

Type of Source Media

raster data

Beginning Date

Not Applicable

Ending Date

Not Applicable

Source Currentness Reference

publication date

Source Citation Abbreviation

Grids and Coordinate Systems

Source Contribution

2.5-minute geographic ticks, U.S. National Grid, UTM grid, State Plane Coordinate System ticks.

Process Description

The GeoPDFs for this product are created as follows. All geospatial content is taken from national geospatial databases under the stewardship of USGS data programs. The NAIP imagery is provided by a seamless tile service that delivers image data at the resolution and quality of the source imagery. The raster and vector data, including grids and collar information, are processed using ESRI ArcGIS software and exported as a GeoPDF using the TerraGo ArcGIS software extension. Map formatting is performed using a custom application, which includes post-processing to embed the metadata XML document. GeoPDF is a copyrighted format, with implementation rights held exclusively by TerraGo Technologies. Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Process Date

20110909

Direct Spatial Reference Method

Raster

Grid Coordinate System Name

Universal Transverse Mercator

UTM Zone Number

Scale Factor at Central Meridian

0.9996

Longitude of Central Meridian

-69

Latitude of Projection Origin

0.0

False Easting

500000

False Northing

0.0

Planar Coordinate Encoding Method

coordinate pair

Abscissa Resolution

Ordinate Resolution

Planar Distance Units

meters

Horizontal Datum Name

North American Datum of 1983

Ellipsoid Name

Geodetic Reference System 80

Semi-major Axis

6378137

Denominator of Flattening Ratio

298.2572221

Altitude Datum Name

North American Vertical Datum of 1988

Altitude Resolution

Altitude Distance Units

meters

Altitude Encoding Method

Explicit elevation coordinate included with horizontal coordinates

Entity and Attribute Overview

This is a general-purpose design and layout quadrangle map based on the traditional USGS quadrangle cells. The domain is a standard 7.5-minute cell. The scale is 1:24,000.

Entity and Attribute Detail Citation

U.S. Department of the Interior, Draft US Topo Product Standard, Version 0.5.10.

Entity and Attribute Overview

This is a general-purpose design and layout quadrangle map based on the traditional USGS quadrangle cells. The domain is a standard 7.5-minute cell. The scale is 1:24,000.

Entity and Attribute Detail Citation

U.S. Department of the Interior, Draft US Topo Product Standard, Version 0.5.10.

Metadata Reference Information

Metadata Date

20110909

Metadata Contact

Contact Organization	U.S. Geological Survey, National Geospatial Technical Operations Center
Contact Person	Not Provided
Address Type	mailing and physical
Address	1400 Independence Road
City	Rolla
State or Province	MO
Postal Code	65401
Address Type	mailing and physical
Address	Box 25046 Denver Federal Center
City	Lakewood
State or Province	CO
Postal Code	80225
Contact Voice Telephone	1-888-ASK-USGS (1-888-275-8747)
Contact Electronic Mail Address	http://www.usgs.gov/ask/
Hours of Service	Monday through Friday 8:00 AM to 4:00 PM
Contact Instructions	Metadata information can also be obtained through online services using The National Map Viewer, at http://nationalmap.usgs.gov or EarthExplorer, at http://earthexplorer.usgs.gov or Ask USGS at http://www.usgs.gov/ask.

Metadata Standard Name

FGDC Content Standard for Digital Geospatial Metadata

Metadata Standard Version

FGDC-STD-001-1998