Historical 15 minute series USGS Map Collection for Pennsylvania, 2nd version


Identification_Information:
Citation:
Citation_Information:
Originator:U.S. Geological Survey
Publication_Date:200601
Title:
Historical 15 minute series USGS Map Collection for Pennsylvania, 2nd version
Geospatial_Data_Presentation_Form:remote-sensing image
Online_Linkage: http://www.pasda.psu.edu/
Description:
Abstract:
A newly revised version of the historic USGS 15 minute topographic maps for Pennsylvania as collected from the MapTech Historical Map Collection at 'http://historical.maptech.com'. As an improvement to the initial version, the original scanned images from MapTech were downloaded, assembled with mosaicing software, and georeferenced to the statewide Albers NAD83 projection.

Historic USGS 15 minute topographic maps for Pennsylvania as collected from the MapTech Historical Map Collection at 'http://historical.maptech.com'.  Scanned map images from MapTech were downloaded, assembled, and registered and rectified via Arc/Info to a custom Albers NAD83 projection.  The name of the map file will tell you the 15 minute quadrangle, the two letter abbreviation of the state is mostly in and the year it references.

Another key point to remember is that through the decades some of the 15 minute USGS quads have changed names.  Some examples include the following groups: (Alburtis-Allentown West-Slatington), (Dingmans Ferry-Wallpack), and (Lehighton-Mauch Chunk).                                                                                                                                           
On most average monitors the maps look best at a scale of 1:25,000 to 1:30,000.
Purpose:
These USGS 15 minute images, derived from the MapTech historical collection, are for historical purposes only. Users are encouraged to visit the MapTech site, and acknowledge the volunteers who orginially scanned and compiled the collection.
Supplemental_Information:
The United States Geological Survey was established on March 3, 1879 and began its topographic atlas of the United States in 1882. The oldest Pennsylvania maps in the online MapTech collection date from the 1890's. The online collection for Pennsylvania comprises over 330 USGS topographic maps.  Overall, the MapTech site includes complete geographical coverage of New England, New York, Pennsylvania, New Jersey, Delaware and Maryland from the 1890s to 1950s. It is slowly being expanded as time permits, through volunteer efforts.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date:1890's
Ending_Date:1950's
Currentness_Reference:
publication date
Status:
Progress:Complete
Maintenance_and_Update_Frequency:None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-80.875
East_Bounding_Coordinate:-74.625
North_Bounding_Coordinate:42.3750
South_Bounding_Coordinate:39.6250
Keywords:
Theme:
Theme_Keyword_Thesaurus:ISO 19115 Topic Categories
Theme_Keyword:raster image
Theme_Keyword:topographic map
Theme_Keyword:topopgraphic quadrangle
Theme_Keyword:drg
Theme_Keyword:digital raster graphic
Theme_Keyword:historic
Theme_Keyword:imageryBaseMapsEarthCover
Place:
Place_Keyword:Pennsylvania
Access_Constraints:For historical purposes only.
Use_Constraints:
For historical purposes only.
Data_Set_Credit:
Historian Christopher Marshall and others who scanned and compiled the collection, MapTech for hosting the collection online, and PASDA for combining and registering the images for GIS use.
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.0.0.535
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
USGS digital raster graphics (DRG's) normally use a standard palette to ensure uniform color throughout a particular map series.  This is to ensure that a particular color will remain consistent thoughout a DRG series.  For these raster images derived from the MapTech Historical collection at http://historical.maptech.com, there is no guarantee given for consistent colors.  This is due to the fact that images downloaded from the collection as jpegs had a 16 million color resolution.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:U.S. Geological Survey
Publication_Date:1890's to 1950's
Title:
15 Minute Series Topographic Quadrangles
Geospatial_Data_Presentation_Form:map
Publication_Information:
Publisher:U.S. Geological Survey
Source_Scale_Denominator:62,500
Type_of_Source_Media:paper
Source_Citation_Abbreviation:
map
Source_Contribution:
Maps scanned at library sites to produce digital images.
Process_Step:
Process_Description:
Scanned USGS 15 minute quadrangle jpeg images were downloaded from the MapTech Historical Map Collection website (http://historical.maptech.com).  Each full map had previously been scanned into four separate images at a library site.  The images were mosaiced using PanaVue Image Assembler 3.1.1 standard addition.  For each map the Mosaic Stitching option was used in Manual Settings mode with Anti- Aliasing turned off, image blending set to 10, and all other settings set to default.  First the northwest and northeast images were joined and the result saved as an uncompressed tiff.  Next the same was done using the southwest and southeast parts of the map.  Finally the two parts created in the previous two steps were combined (still using Manual settings) and the resulting image was saved as a JPEG with a compression setting of 1 to retain maximum quality of the image.   Next Irfanview 3.98 was used in batch mode to bring down the colors to 255 using the non-dithering option along with batch saving them as Tiffs.  Finally ArcInfo 9.0's georeferencing toolbar was used to attempt to do a rough georeferencing to the custom Albers projection with a datum of NAD 1983.  

Next the images were georeferenced to the their appropriate UTM Zone (17 or 18) using ArcGIS ArcINFO 9 which created the appropriate world file for the image and AUX file with the projection information.  The images were not rectified to the new projection and as such are nearly identical to the original scanned maps.
Process_Step:
Process_Description:
Metadata imported.
Source_Used_Citation_Abbreviation:
C:\temp\histopos.xml
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method:Raster
Raster_Object_Information:
Raster_Object_Type:Pixel
Row_Count:3818
Column_Count:3105
Vertical_Count:1
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name:Albers Conical Equal Area
Albers_Conical_Equal_Area:
Albers Conical Equal Area
Standard_Parallel:40.000000
Standard_Parallel:42.000000
Longitude_of_Central_Meridian:-78.000000
Latitude_of_Projection_Origin:39.000000
False_Easting:0.000000
False_Northing:0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method:row and column
Coordinate_Representation:
Abscissa_Resolution:8.118821
Ordinate_Resolution:8.141188
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:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Band_1
Attribute:
Attribute_Label:ObjectID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label:Value
Attribute:
Attribute_Label:Red
Attribute:
Attribute_Label:Green
Attribute:
Attribute_Label:Blue
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Pennsylvania Spatial Data Access (PASDA)
Contact_Address:
Address_Type:mailing and physical address
Address:
Land and Water Building
City:University Park
State_or_Province:PA
Postal_Code:16802
Country:USA
Contact_Electronic_Mail_Address:pasda@psu.edu
Contact Instructions:
Contact via email
Resource_Description:Downloadable Data
Distribution_Liability:
The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name:TIFF
File_Decompression_Technique:zip
Transfer_Size:9.790
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://pasda.psu.edu>
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:MapTech, Inc.
Contact_Address:
Address_Type:mailing and physical address
Address:
10 Industrial Way
City:Amesbury
State_or_Province:MA
Postal_Code:01913
Country:USA
Contact_Electronic_Mail_Address:Chris Marshall <sales@maptech.com>
Contact Instructions:
Through a connection established by Maptech employee Ed Lecuyer, Chris Marshall approached Maptech to host the MapTech Historical Map collection.  Other contributors include Stephen Titchenal and Derrick Brashear. If you would like to help expand this collection, contact Chris Marshall through Maptech's e-mail address: sales@maptech.com.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size:9.790
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Metadata_Reference_Information:
Metadata_Date:20060110
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:PASDA
Contact_Address:
Address_Type:mailing and physical address
Address:
Land and Water Building
City:University Park
State_or_Province:PA
Postal_Code:16802
Contact_Electronic_Mail_Address:pasda@psu.edu
Metadata_Standard_Name:FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
Metadata_Time_Convention:local time
Metadata_Extensions:
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name:ESRI Metadata Profile
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