Illinois Height Modernization: Monuments, CORS, and RTK Networks
Web resources for land survey monuments and benchmarks, Continuously Operating Reference Stations (CORS), High Accuracy Reference Network (HARN) providers, and Real Time Kinematic (RTK)) networks in or near Illinois.
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| NGS CORS using Google Maps. |
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| Image credit: Geocaching.com. Details for Benchmark: LC0155 |
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| Image credit: DuPage County Cooperative CORS Network for DP1A. |
Land Survey Monuments in Illinois
- NGS Datasheet Page
- Find a Survey Mark
- USGS Survey Benchmark Information
- Not yet available on the Internet.
- Geocaching Benchmark Benchmark Hunting
- Geocachers track down and photograph benchmarks; search by zip code or Point ID.
- HubTack, Inc. Survey Records On-Line
- Includes Illinois monument records, GLO Notes, GLO Plats, and County Survey records.
- DuPage County Geodetic Control Resources
- DuPage County, Illinois Geodetic Vertical Control Network(Map)
- Kane County Geodetic Monuments
- Aurora, IL City Benchmarks
- Aurora City Benchmarks (Map and all Control Monuments)
- City of Naperville Land Suvey Monuments
- City of Naperville: Survey Monument Locator (Map)
- West Chicago Survey Control Network
- Horizontal Monument Location Map
- Vertical Monument Location Map
CORS, HARN, and RTK Networks in Illinois
- National Geodetic Survey CORS
- NGS CORS Using Google Maps
- KARA Company CPRS Sites Information
- Seiler Instrument Company: Midwest RTK Network
- St. Louis and Indianapolis networks cover south-central Illinois
- Trimble VRS now - USA Illinois Coverage Map
- Coverage for northern Illinois
CORS, HARN, and RTK Networks in Neighboring States
- InCORS: Indiana Department of Transporation
- Current RTK network of 45 stations, including western Indiana
- Indiana HARN
- Indiana Hight Accuracy Reference Network
- Iowa RTN
- RTN network, including eastern Iowa
- RTK of Iowa
- RTK coverage in central Iowa
- KYCORS: Kentucky Transportation Cabinet Division of Highway Design
- Geodetic Control in Kentucky
- MoDOT: Missouri Department of Transporation
- Illinois Stations related to St. Louis area
- WISCORS: Wisconsin Department of Transporation
- Current reference stations, including southern Wisconsin