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  1. Title: Average Annual Precipitation, New York State, 1961-1990

    Contributors:

    Summary: This data set shows polygons of average annual precipitation in New York State, for the climatological period 1961-1990. Parameter-elevation Regressions on Independent Slopes Model (PRISM) derived raster data is the underlying data set from which the polygons and vectors were created. PRISM is an analytical model that uses point data and a digital elevation model (DEM) to generate gridded estimates of annual, monthly and event-based climatic parameters. These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the Spatial Climate Analysis Service, the USDA - NRCS National Water and Climate Center, the USDA - NRCS National Cartography and Geospatial Center, or the U.S. Geological Survey in the use of these data.

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  2. Title: State Highway Department's map of the state of Oregon : showing main traveled automobile roads

    Contributors:

    Summary: Relief shown by hachures and spot heights.; On verso: Text, mileage tables and 2 ancillary maps.; In lower right corner: "E.A. Skelley." 44 x 58 centimeters Scale approximately 1:1,178,000 General Map Collection

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  3. Title: State Highway Department's map of the state of Oregon showing main traveled automobile roads

    Contributors:

    Summary: Relief shown by hachures and spot heights.; In lower right: "E. A. Skelley."; Includes text, mileage tables and ancillary map on verso. 39 x 52 centimeters Scale approximately 1:1,330,560 General Map Collection

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  4. Title: Portland Aerial photo 2011

    Contributors:

    Summary: Aerial map or Portland metro area derived from ortho-rectified digital images, covering 602 square miles at 6 inch resolution. Map from Oregon Metro. Original CRS: NAD_1983_HARN_StatePlane_Oregon_North_FIPS_3601 Used CRS: NAD_1983_StatePlane_Oregon_North_FIPS_3601_Feet to project map in the correct location.

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  5. Title: Portland Outdoor Recreation and Conservation Areas

    Contributors:

    Summary: Map of recreation and conservation areas (these include parks, natural areas, golf courses, cemeteries, school land, homeowner association parcels). Original map projection : NAD_1983_HARN_StatePlane_Oregon_North_FIPS_3601 CRS used: NAD_1983_StatePlane_Oregon_North_FIPS_3601_Feet.

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  6. Title: Portland building footprints

    Contributors:

    Summary: A map of the city's building footprints, incluidng hieights obtained through LIDAR and existing footprint data. Original CRS: NAD_1983_HARN_StatePlane_Oregon_North_FIPS_3601, but used NAD_1983_StatePlane_Oregon_North_FIPS_3601_Feet to ensure correct geolocation.

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  7. Title: Map of Oregon

    Contributors:

    Summary: Shows railroads, trails, forest reserves, Indian reservations, and national parks. Includes index.; Verso: Descriptive and travel information. 63 x 76 centimeters Scale approximately 1:1,267,200 General Map Collection

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  8. Title: A correct map of the Pacific Northwest showing rail & steamer lines of the O. R. & N. Co.; Title on map: Map of the Oregon Railroad and Navigation Co.

    Contributors:

    Summary: Cover title. Copyright, 1898, by Poole Bros., Chicago. 1 map: col.; 59 x 55 cm, folded in cover 16 x 11 cm

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  9. Title: Portland Air Toxics Solutions Data, 2012

    Contributors:

    Summary: "In 2009, DEQ created the Portland Air Toxics Solutions project to work with local communities to develop air toxics reduction strategies for the Portland region, including portions of Multnomah, Washington and Clackamas Counties" (www.deq.state.or.us/aq/toxics/pats.htm). These data represent block-group scale modeling of air toxics risks from a variety of sources (19 pollutants total), prepared in 2012 with model extrapolation to target year 2017. The study led to a number of priorities and ongoing management/policy discussions regarding Portland air quality. Data included here generally represent a ratio of pollutant concentration to ABC (ambient background concentration) for that pollutant, implying relative risk from each pollutant; see attribute file for details.

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  10. Title: MassGIS 2003 Massachusetts Orthophoto Wetlands (1:5,000) (February 2003)

    Contributors:

    Summary: This datalayer consists of polygons representing wetlands (marshes, bogs, swamps, etc.) in the state of Massachusetts. It is one of two datalayers that comprise the MassGIS Orthophoto Wetlands and Streams (1:5,000) data (see also the Orthophoto Streams (1:5,000) arc datalayer). State coverage is incomplete. Portions of North Central and Western Massachusetts are not covered.

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  11. Title: MassGIS 2003 Massachusetts Orthophoto Streams (1:5,000) (February 2003)

    Contributors:

    Summary: This datalayer consists of arcs representing streams and rivers in the state of Massachusetts. It is one of two datalayers that comprise the MassGIS Orthophoto Wetlands and Streams (1:5,000) data (see also the Orthophoto Wetlands (1:5,000) polygon datalayer). State coverage is incomplete. Portions of North Central and Western Massachusetts are not covered.

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  12. Title: MassGIS 2003 Massachusetts Priority Natural Vegetation Communities : Pine Barrens Natural Community Systems (UMass) (April 2003)

    Contributors:

    Summary: This datalayer contains polygons representing Massachusetts Priority Natural Vegetation Communities : Pine Barrens Community Systems produced by the University of Massachusetts at Amherst (UMass). The data covers only a portion of southeastern Massachusetts including the towns of Plymouth, Kingston, Bourne, Carver, and Wareham, Massachusetts. Pine Barrens Systems are a mosaic of pitch pine and scrub oak, with heath and grassy openings, located on nutrient-poor, acidic, drought-prone soils. Due to spatial accuracy issues, the UMass data should be used for regional analysis only, at scales of 1:30,000 and smaller. The datalayer can be used with the MassGIS datalayer: Priority Natural Vegetation Communities : Pine Barrens Community Systems, which covers a portion of eastern Massachusetts excluding the areas covered by this UMass datalayer. This layer is part of the MassGIS Priority Natural Vegetation Communities dataset, which depicts the distribution of the eight natural community systems identified by the Massachusetts Natural Heritage and Endangered Species Program (NHESP) as most critical to the conservation of the Commonwealth's biological diversity (Barbour et al., 1998).

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  13. Title: MassGIS 2000 Rail Trails Datalayer

    Contributors:

    Summary: The Rail Trails Datalayer is a line coverage representing abandoned railroad rights-of-way and public bike trails that use the rights-of-way. The dataset was created by the Massachusetts Department of Environmental Management for the purpose of regional planning and mapping. The data was originally modified by DEM from the MassGIS Railroads Datalayer; it has since been modified for DEM by the University of Massachusetts in 1997. All modifications were made using information from various paper maps, and much of the data came directly from USGS Topographic Quadrangles.

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  14. Title: MassGIS 2000 Long Distance Trails

    Contributors:

    Summary: The Long Distance Trails Datalayer is a line coverage representing trails that are longer than 25 miles. The data was created for the purpose of regional planning and mapping by the Massachusetts Department of Environmental Management (DEM) and was modified for DEM by the University of Massachusetts in 1997.

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  15. Title: Watersheet Plan, Boston Harbor, Massachusetts, 1998 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Boston Harbor watersheet plan, prepared for the city of Boston by Urban Harbors Institute, University of Massachusetts Boston. It was published by Urban Harbors Institute in 1998. Scale [ca. 1:3,000]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, territorial boundaries, shoreline features, and more. Includes also legend showing marine transportation, drainage, and landmark features. This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

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  16. Title: MassGIS 2003 Massachusetts Land Use (January 2002)

    Contributors:

    Summary: The MassGIS Land Use datalayer has 37 land use classifications interpreted from 1:25,000 aerial photography. Coverage is complete statewide for 1971, 1985, and 1999. Additionally, more than half the state was interpreted from aerial photography flown during 1990, 1991, 1992, 1995 or 1997. The 15 towns on Cape Cod also contain land use data for 1951. Please see the Land Use Status Map (http://www.mass.gov/mgis/st_lus.htm), which displays the years for which land use data were interpreted for each town. The year of most recent photography used for land use data interpretation is stored in a single statewide coverage called LUSTAT (http://www.mass.gov/mgis/ftplus.htm). This layer was necessitated because some towns contain partial coverage for a certain year, which eliminated the one-to-one link between town-ID and year.

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  17. Title: Map showing existing property now owned by the Ohio State University, Columbus, Ohio

    Contributors:

    Summary: Scale approximately 1:6000. 1 in. = 500 ft. Bird's-eye view. [Ohio State University]

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  18. Title: Plan for settling new colonies

    Contributors:

    Summary: Extent: 1 map Notes: Map shows a plan for a town in the new American colonies. Scale not given

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  19. Title: An accurate map of his R. H. the Duke of York's journey thro Italy in 1763 & 1764

    Contributors:

    Summary: Extent: 1 map Scale approximately 1:2,300,000

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  20. Title: North America upon the globular projection, drawn from the latest and best authorities

    Contributors:

    Summary: Extent: 1 map Notes: Relief shown pictorially. Map was likely extracted from: Volume II of A new and comprehensive system of philology; or, a treatise of the literary arts and sciences, according to their present state / by Benjamin Martin, published in 1764, originally published in monthly installments as: The general magazine of arts and sciences, philosophical, philological, mathematical and mechanical. Prime meridian: London. Shows colonial boundaries. Scale not given

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