Public Land Survey System (PLSS) data - download, connect, or stream into Google Earth
Written by Glenn Letham (GISuser editor)
Wednesday, 23 May 2007 Looking for PLS data for your GIS? Here's a couple of very useful resources you should consider. These include the Land Survey Information System (BLM) - available via download (SHP) or connection to a web service - and a cool utility from Earth Point enabling users to specify a location and map the data using Google Earth. Requested data are extracted and provided as a KMZ.
About the PLSS
Recall the Public Land Survey System also called the Rectangular Survey System is the foundation for many survey-based land information systems. Downloading PLSS GIS shapefiles from http://www.geocommunicator.gov/GeoComm/lsis_home/home/index.html. To select and download data, select the Map Viewer and Download button. Once on the download site use the State Tab or County Tab (next to the words << Download) to select and download data for an entire state or county. To download just one or a few townships use the Township Selection Tool. Use the Quick Start Guide or Viewer Help on the download site for more information on getting started
The PLSS data is also available as a map service for use in GIS applications. The map service allows users to stream the data live to your desktop GIS. Map Server URL: http://www.geocommunicator.gov/ Map Service: BLM_MAP_PLSS
The Shapefiles are for use with GIS software such as ArcInfo, ArcView, ArcExplorer (download for free) or other GIS software. Shapefiles come with the following data: Townships Sections Subdivisions of Section Horizontal Control Information (Latitude and Longitude) Metadata
Note: The PLSS data is coming from the National Integrated Land System (NILS). The current PLSS data are in NAD83 datum. The PLSS shapefiles available from LSIS before May of 2004 were in NAD27 datum.
The Township Geocoder allows for the conversion of Latitude and Longitude (Lat/Long) values into Township, Range and Section values. Likewise, Township, Range and Section values can be converted into polygon centroids in Lat/Long format. There is also an option to bulk upload a file containing Townships or Lat/Long values and to have their respective Lat/long or Township values be returned. http://www.geocommunicator.gov/GeoComm/lsis_home/townshipdecoder/index.html
Interested in viewing Township / Range data in Google Earth?
Jump to the following section on the Earthpoint webpage - http://www.earthpoint.us/townships.aspx. Users can elect to view data from the BLM or National Atlas. Then, enter some values like State, Meridian, Township, Range. The you simply fly to "Google Earth" - the data you selected will appear on a map within Google Earth. If you'd rather see coverage for the entire country then you can view either BLM Township, Range, and Section or National Atlas Township and Range.
PLS data as seen in Google Earth (Source: Earth Point)
On the Earth Point weblog a useful tutorial explains in detail how to create a view in Google Earth that displays a plat map draped over satellite imagery for an area of interest. See Here
See more threads and details about Glenn's AnyGeo Weblog HERE The Editor (Glenn) started the AnyGeo blog some time ago and the threads are now also mirrored here at GISuser.com - RSS feed is available to add to your favorite news reader.
Featured Events
2008 ESRI International User Conference (ESRI UC) - Users from more than 120 countries come to learn new skills, share information, and discover best practices, tips, and tricks that they can use instantly. Be part of this extraordinary experience August 4–8, 2008, in San Diego, California.
2008 ESRI Survey & Engineering GIS Summit - August 2-5, San Diego, California. Join more than 400 surveyors and engineers in exploring the possibilities of GIS technology. See how GIS software integrates with surveying and engineering tools to provide more complete business solutions and field processes.
GITA 17th Annual GIS for Oil & Gas Conference and Exhibition, set for Sept. 21-24, 2008 - The conference is the only event of its kind, devoted exclusively to geospatial applications and technologies for all aspects of the oil and gas industry.
GeoInt 2008 - Join us for the 5-year anniversary of the GEOINT SYMPOSIUM October 27-30 in Nashville, Tenn., where you'll have an unparalleled opportunity to learn, network and discover as we discuss the importance of being Mission Focused while Transitioning to the Future.
Community 
Looking for PLS data for your GIS? Here's a couple of very useful resources you should consider. These include the Land Survey Information System (BLM) - available via download (SHP) or connection to a web service - and a cool utility from Earth Point enabling users to specify a location and map the data using Google Earth. Requested data are extracted and provided as a KMZ.
See more threads and details about 
Get GISuser news & updates via RSS
