6,923 results returned
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Title: Contours, 10 ft interval, Non-Watershed area
Contributors:- Line data
- 2010
Summary: Elevation Contours of Napa County for non-watershed Area, 10 foot interval. These are the 10 ft contours produced during the 2002/2003 Orthophotography Project. The area covered by this data is referred to as the Non-watershed Area because it lies outside the Napa River Watershed. The contours were mapped at a scale of 1"=400ft and meet National Map Accuracy standards at this scale. The vertical datum for the contours is NAVD88.
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Title: Spot Elevations, Watershed area
Contributors:- Point data
- 2010
Summary: Spot Elevation Points of the Napa River Watershed Area, 200 foot interval. The area covered by this data is referred to as the Watershed Area because it lies within the Napa River Watershed which is roughly the western half of the county. The data was originally delivered in 12,000 ft x 12,000 ft tiles. These were mosaiced together to create this layer.
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Title: Orthophoto Project Tile Boundaries
Contributors:- Polygon data
- 2002
Summary: Boundaries of the tiles used in the 2002 Orthophotography Project.
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Title: Contours, 5 ft interval, Watershed area
Contributors:- Line data
- 2010
Summary: Elevation Contours of the Napa River Watershed Area, 5 foot interval. The area covered by this data is referred to as the Watershed Area because it lies within the Napa River Watershed which is roughly the western half of the county. The DTM is based on LiDAR data acquired in May of 2003.
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Title: Interior contours, 200 scale
Contributors:- Line data
- 1999
Summary: Elevation contours corresponding to digital orthophotographs rectified to ground control corresponding to 200 scale mapping (1 inch = 200 feet) covering Marin County city-centered corridor and selected developed areas of West Marin. Five-foot contours interior to the Index contours (50 foot). Use in conjunction with C200IDX Index fifty-foot contours.
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Title: Index Contours, 200 scale
Contributors:- Line data
- 1999
Summary: Elevation contours corresponding to digital orthophotographs rectified to ground control corresponding to 200 scale mapping (1 inch = 200 feet) covering Marin County city-centered corridor and selected developed areas of West Marin. Fifty-foot Index contours. Use in conjunction with C200INT interior five-foot contours.
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Title: Interior contours, 400 scale
Contributors:- Line data
- 1999
Summary: Elevation contours corresponding to digital orthophotographs rectified to ground control corresponding to 400 scale mapping (1 inch = 400 feet) covering western portions of Marin County. Ten-foot interior contours. Use in conjunction with C400IDX index fifty-foot contours.
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Title: Index Contours, 200 scale
Contributors:- Line data
- 1999
Summary: Elevation contours corresponding to digital orthophotographs rectified to ground control at accuracies of 200 and 400 scale covering entire Marin County California. AutoCAd drawing files of five foot contours corresponding to 240 200-scale panels and ten foot contours corresponding to 151 400-scale panels. Drawings can be joined at seams. Produced by Towill Incorporated, a photogrammetry company.
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Title: ZIP Code Points, United States (Q4 2013)
Contributors:- Point data
- 2015
Summary: This point shapefile contains point locations for zip codes in United States from October to December, 2013. Attributes included in the data are polygon (area boundary ID), area/perimeter, county names, FIPS and USPS codes, and alternate names. These data are updated quarterly using the latest feeds from the U.S. Postal Service with additional sources being used to cross-check the data. This layer provides zip code data for view and analysis in GIS and interactive web mapping applications. TTG, Inc. (2014). ZIP Code Points, United States (Q4 2013). TTG, Inc. Available at: http://purl.stanford.edu/kw471rr0301
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Title: ZIP Code Boundaries, United States (Q1 2015)
Contributors:- Polygon data
- 2015
Summary: This polygon shapefile contains zip code boundaries for the United States. Data are valid from January to March, 2015. Attributes included in the data are location, area/perimeter, county names, FIPS and USPS codes, and alternate names. These data are updated quarterly using the latest feeds from the U.S. Postal Service with additional sources being used to cross-check the data. This layer provides zip code data for view and analysis in GIS and interactive web mapping applications. TTG, Inc. (2015). ZIP Code Boundaries, United States (Q1 2015). TTG, Inc. Available at: http://purl.stanford.edu/jx988vx8354
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Title: ZIP Code Points, United States (Q1 2015)
Contributors:- Point data
- 2015
Summary: This point shapefile contains point locations for zip codes in United States from January to March, 2015. Attributes included in the data are polygon (area boundary ID), area/perimeter, county names, FIPS and USPS codes, and alternate names. These data are updated quarterly using the latest feeds from the U.S. Postal Service with additional sources being used to cross-check the data. This layer provides zip code data for view and analysis in GIS and interactive web mapping applications. TTG, Inc. (2015). ZIP Code Points, United States (Q1 2015). TTG, Inc. Available at: http://purl.stanford.edu/hm253pk1506
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Title: Aquifer Protection Study - Aquifer Favorability/Transmissivity, Sharon, Massachusetts, 1987 (Raster Image)
Contributors:- Raster data
- 2014
Summary: This layer is a georeferenced raster image of the historic paper map entitled: Aquifer protection study, town of Sharon : acquifer favorability/transmissivity / IEP Inc. It was published by IEP Inc. in 1987. Scale [ca. 1:25,000]. 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 roads, railroads, drainage, cities and other human settlements, territorial boundaries, shoreline features, and more. Includes also watershed labels, topographic distinctions, and aquifer favorability/transmissivity shown in graduated colors 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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Title: Aquifer Protection Study (Colored), Sharon, Massachusetts, 1987 (Raster Image)
Contributors:- Raster data
- 2014
Summary: This layer is a georeferenced raster image of the historic paper map entitled: Aquifer protection study, town of Sharon : surficial geology / IEP Inc. It was published by IEP Inc. in 1987. Scale [ca. 1:25,000]. 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 roads, railroads, drainage, cities and other human settlements, territorial boundaries, shoreline features, and more. Includes also watershed labels, surficial geology data and legends, topographic distinctions, and bibliographic references to surficial geologic mapping. 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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Title: Aquifer Protection Study, Sharon, Massachusetts, 1987 (Raster Image)
Contributors:- Raster data
- 2014
Summary: This layer is a georeferenced raster image of the historic paper map entitled: Aquifer protection study, town of Sharon : subsurface data points / IEP Inc. It was published by IEP Inc. in 1987. Scale [ca. 1:25,000]. 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 roads, railroads, drainage, cities and other human settlements, territorial boundaries, shoreline features, and more. Includes also watershed labels, subsurface data points and legend, and topographic distinctions. 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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Title: Aquifer Protection Study - Stratified Drift Saturated Thickness, Sharon, Massachusetts, 1987 (Raster Image)
Contributors:- Raster data
- 2014
Summary: This layer is a georeferenced raster image of the historic paper map entitled: Aquifer protection study, town of Sharon : stratified drift saturated thickness / IEP Inc. It was published by IEP Inc. in 1987. Scale [ca. 1:25,000]. 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 roads, railroads, drainage, cities and other human settlements, territorial boundaries, shoreline features, and more. Includes also watershed labels, topographic distinctions, and stratified drift saturated thickness contours shown in graduated colors. 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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Title: ZIP Code Boundaries, United States (Q3 2014)
Contributors:- Polygon data
- 2014
Summary: This polygon shapefile contains zip code boundaries for the United States. Data are valid from July to September, 2014. Attributes included in the data are location, area/perimeter, county names, FIPS and USPS codes, and alternate names. These data are updated quarterly using the latest feeds from the U.S. Postal Service with additional sources being used to cross-check the data. This layer provides zip code data for view and analysis in GIS and interactive web mapping applications. TTG, Inc. (2014). ZIP Code Boundaries, United States (Q3 2014). TTG, Inc. Available at: http://purl.stanford.edu/mz318cs4448
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Title: ZIP Code Points, United States (Q3 2014)
Contributors:- Point data
- 2014
Summary: This point shapefile contains point locations for zip codes in United States from July to September, 2014. Attributes included in the data are polygon (area boundary ID), area/perimeter, county names, FIPS and USPS codes, and alternate names. These data are updated quarterly using the latest feeds from the U.S. Postal Service with additional sources being used to cross-check the data. This layer provides zip code data for view and analysis in GIS and interactive web mapping applications. TTG, Inc. (2014). ZIP Code Points, United States (Q3 2014). TTG, Inc. Available at: http://purl.stanford.edu/zx175zc0013
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Title: ZIP Code Boundaries, United States (Q4 2013)
Contributors:- Polygon data
- 2014
Summary: This polygon shapefile contains zip code boundaries for the United States. Data are valid from October to December, 2013. Attributes included in the data are location, area/perimeter, county names, FIPS and USPS codes, and alternate names. These data are updated quarterly using the latest feeds from the U.S. Postal Service with additional sources being used to cross-check the data. This layer provides zip code data for view and analysis in GIS and interactive web mapping applications. TTG, Inc. (2014). ZIP Code Boundaries, United States (Q4 2013). TTG, Inc. Available at: http://purl.stanford.edu/ph685hb9708
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Title: ZIP Code Points, United States (Q3 2013)
Contributors:- Point data
- 2013
Summary: This point shapefile contains point locations for zip codes in United States from July until September, 2013. Attributes included in the data are polygon (area boundary ID), area/perimeter, county names, FIPS and USPS codes, and alternate names. These data are updated quarterly using the latest feeds from the U.S. Postal Service with additional sources being used to cross-check the data. This layer provides zip code data for view and analysis in GIS and interactive web mapping applications. TTG, Inc. (2013). ZIP Code Points, United States (Q3 2013). TTG, Inc. Available at: http://purl.stanford.edu/ft767jf3844
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Title: ZIP Code Boundaries, United States (Q3 2013)
Contributors:- Polygon data
- 2013
Summary: This polygon shapefile contains zip code boundaries for the United States. Data are valid from July to September, 2013. Attributes included in the data are location, area/perimeter, county names, FIPS and USPS codes, and alternate names. These data are updated quarterly using the latest feeds from the U.S. Postal Service with additional sources being used to cross-check the data. This layer provides zip code data for view and analysis in GIS and interactive web mapping applications. TTG, Inc. (2013). ZIP Code Boundaries, United States (Q3 2013). TTG, Inc. Available at: http://purl.stanford.edu/ns133qh6132