Some offices do not yet make cadastral information available over the Internet.  To find cadastral data in local areas, contact local County Recorder, Assessor, Surveyor, and Land Use departments.  Also, contact the State and Federal land management agencies which manage public land in the areas you are interested in, such as BLM, USDA Forest Service, the National Park Service, etc.

Bureau of Land Management
The BLM maintains cadastral survey and historical data on Federal and Tribal Boundaries and patented lands, along with information on the mineral estate, resource conditions, and permits or leases on Federal lands.

Many of the BLM addresses below provide access to GCDB and cadastral data.  Internet addresses and web site content change frequently.  The addresses listed below were active at the time of this publication.

BLM GCDB sites:
BLM National GCDB Download page: http://lm0500.blm.gov/
BLM LSI Homepage: http://www.geocommunicator.gov/lsi/
California: http://www.ca.blm.gov/cadastral/readme.html
Colorado: http://www.co.blm.gov/gcdb/gcdb2.htm
Idaho: http://www.id.blm.gov/cadastral/gcdb/index.asp
Montana: http://www.mt.blm.gov/cadastral/gcdb/index.html
New Mexico: http://www.nm.blm.gov/www/nmso/cadastral/page_2a.html
Nevada: http://www.nv.blm.gov/cadastral/cadastral_survey/GCDB.HTM
Oregon: http://www.or.blm.gov/OR957/GCDB/
Utah: http://www.blm.gov/utah/geosciences/gcdb/frames.html
Wyoming: http://wgiac.state.wy.us/wsdc/blm/gcdb/gcdbmap.html

BLM Cadastral Survey sites:
Alaska: http://www.ak.blm.gov/ak920/
Arizona: http://azwww.az.blm.gov/fr_browse.htm
California: http://www.ca.blm.gov/cadastral/records.html
Colorado:  http://www.co.blm.gov/cadastral/caddata.htm
Eastern States: http://www.es.blm.gov/cadast/cadast.html
Idaho: http://www.id.blm.gov/cadastral/index.asp
Montana: http://www.mt.blm.gov/cadastral/index.html
New Mexico: http://www.nm.blm.gov/www/nmso/cadastral/page_1.html
Nevada: http://www.nv.blm.gov/cadastral/Default.htm
Oregon: http://www.or.blm.gov/OR957/Cadastral/Surveys/surveyindex.htm
Utah: http://www.blm.gov/utah/geosciences/Cadastral1.html
 

USDA Forest Service
In some cases you will be able to find survey and cadastral information on sites hosted by the USDA Forest Service, though at this time there appears to be no centralized location for Forest Service data.  Data, where it is available, is offered by regional offices and individual forest offices, such as the two following examples.

Gifford Pinchot National Forest GIS metadata and coverages for the forest landnet - land survey and PLSS. http://www.fs.fed.us/gpnf/gis/c192.htm.

Uintah National Forest GIS Data Dictionary – metadata and coverages for administration, ownership and land status; administrative ownership and municipal boundaries; town, range and section; forest boundary, county boundaries; national park boundaries. http://www.fs.fed.us/r4/uinta/gis/state/index.htm.
 

State Agencies
Though it is less common for States to store and manage cadastral information, some State agencies provide access to cadastral data.  Search your State’s web pages for topics such as GIS, cadastral, parcel, and ownership.  The following are examples of cadastral data made available by state offices.

Utah’s Automated Geographic Reference Center makes themes available such as County Boundaries, Land Status/Administration/Ownership, and Municipal Boundaries.  AGRC’s site is at http://agrc.its.state.ut.us/geodata1.htm.

The State of Washington DNR Cadastral Framework Database is available for viewing on line at http://framework.dnr.state.wa.us/avims/avimsviews.htm.

The State of Nebraska Range and Township, Sections, and Town data is available at  http://csd.unl.edu/csd/gisdata.html. Nebraska also has a steering committee for the Development of an Upgradeable Public Land Survey System Geospatial Database.
See: http://www.calmit.unl.edu:80/gis/PLSS_pilot.htm.
 

Counties
Many county agencies offer cadastral information on line.  There is no single source we can list here which will give you access to the many different counties across the country.  To find county information, search your county’s web site for cadastral, survey, and parcel GIS coverages.  Phoning or emailing the appropriate county department may also help.

You will also find that some counties do not make data available over the Internet, but will provide data on hard media such as diskette or tape, some for a fee, others for no cost.

Listed below are a few examples of counties providing cadastral information to the public.

Mesa County, Colorado provides an extensive set of data to view and download on line at http://www.co.mesa.co.us/imd/gis/gis1.htm.

Utah County, Utah, provides many themes, including City Lots, Blocks, Boundaries, Planning Zones, Public Lands, Road Right Of Ways, PLSS Sections, and Parcels. http://www.co.utah.ut.us/dept/publicwk/metadata/index.htm.

Also in Utah are sites for Weber County http://www.co.weber.ut.us/gis/default.asp, and Salt Lake County http://rec.co.slc.ut.us/polaris/free/deffree.cfm?thepage=freegis.

Dane County, Wisconsin offers a Public Access System which allows you to bring up parcel information by searching for real property, tax, and zoning information.  Go to
http://dc-web.co.dane.wi.us/dane/html/public.asp.

A list of several Wisconsin counties can be found at a State hosted site.  These counties offer detailed metadata about parcel and tax data, including information on how to obtain the data.  The site is at http://wisclinc.state.wi.us/datadisc/orgmetabl1.html.

Oakland County, Michigan offers descriptions of PLSS data and geodetic control information at http://www.co.oakland.mi.us/c_serv/gis/index.html.  Oakland county converted over 4,500 hard copy parcel maps representing approximately 430,000 parcels of property into a GIS format.  Parcels of property can be searched and located digitally, brought up on the screen in a GIS and displayed in conjunction with assessing data, aerial photography, wetlands, zoning, and other themes.  Fee-based on line access is available at http://www.co.oakland.mi.us/c_serv/gis/.