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Welcome to the PLSC Website!

PLSC is dedicated to the improvement of land surveying education and practice. We encourage land surveying professionals and individuals interested in our profession to participate in our upcoming events, visit our Chapter websites and get involved! This is a great profession, and PLSC is here to support the profession to continually improve the practice within Colorado.

Need a Land Surveyor?

PLSC cannot recommend one surveyor over another. If you need a land surveyor, please  go to the Colorado Department of Regulatory Agencies (DORA) and download the list of Colorado licensed surveyors and also check for any disciplinary actions against a particular surveyor under the "Verify License Tab" on the DORA site. Certified Federal Surveyors are listed at Be sure to check references for the surveyor you are considering hiring.


Phil Riker has passed away
Posted August 25, 2015

Phil Riker passed away Friday evening after suffering from a heart attack several days prior. We do not have any details other than a memorial service is tentatively planned for September 12th. We will update this posting as news is received.

CORS Site in Pueblo under threat of decommission
Posted August 25, 2015

The Federal Register has issued a "Notice: Request for Public Comments" from the Coast Guard (USCG), the transportation Department (DOT), and the Corps of Engineers (USACE) dated 08/18/2015. The Nationwide Differential Global Positioning System (NDGPS) service augments GPS by providing increased accuracy and integrity using land-based reference stations to transmit correction messages over radiobeacon frequencies. The service was implemented through agreements between multiple Federal agencies including the USCG, DOT, and Army Corps of Engineers, as well as several states and scientific organizations, all cooperating to provide the combined national DGPS utility. However, a number of factors have contributed to declining use of NDGPS and, based on an assessment by the Department of Homeland Security, DOT, and USACE, DHS, DOT, and USACE are proposing to shutdown and decommission 62 DGPS sites, which will leave 22 operational sites available to users in coastal areas. This notice seeks public comments on the shutdown and decommissioning of a total of 62 DGPS sites. Termination of the NDGPS broadcast at these sites is planned to occur on January 15, 2016.You may view the Notice at See the Notice for details regarding submission of comments. Comments and related material must reach the Docket Management Facility on or before November 16, 2015.


Equipment for Sale
Posted August 07, 2015

We have the following equipment for sale:* (12) Vivax Underground Locator $2800* (1) Leica Na2 AutoLevel $1150* (6) Sokkia B1 AutoLevel $850* (6) Leica TS11 Total Station $8000* Trimble R6 Model 3 with GNSS $23,500* (8) Leica GS15 GNSS GPS Receivers with CS15 Controller $23,500All equipment is used/great condition. I have pictures of all the listed equipment.We would appreciate any direction.Thank you very much for your time,-- Lana DonethAdministrative | HR Recruiter (248) 844-5400 Phone(248) 844-5404 Fax(586) 453-1339 Cell Spalding DeDecker | 905 South Blvd East | Rochester Hills, MI 48307

PLSC presents atTrigStar Award Ceremony
Posted May 08, 2015

Roger Nelson, PLS, PLSC Immediate Past President spoke at the TrigStar Award Presentation hosted by Jan Sterling, PLS and the City of Aurora. Congratulations to this year's winners.

Classified Ads

TitleEmployerPost Date
Crew Chief 08/27/15
Crew Chief 08/27/15
GIS AnalystSchool and Institutional Trust Lands Administration08/25/15
Instrument OperatorBowman Consulting Group08/31/15
Land Surveyor TechnicianAtwell, LLC08/27/15
Survey Crew ChiefWoolpert07/24/15
Survey Crew ChiefWoolpert08/31/15
Survey Party ChiefBowman Consulting Group08/31/15
Survey Tech 08/27/15
Surveying TechnicianCity and County of Denver08/31/15


Member Spotlight

PLSC would like to introduce you to our members. If you would like to submit your photo and information for a future Spotlight, email the information to

Pamela Fromhertz has been the NOAA National Geodetic Survey Colorado State Geodetic Advisor since 2004.  Pam interacts with the geospatial community at the local, state, and Federal levels, as well as with private industry, to educate and advise on the benefits of the National Spatial Reference System (NSRS) and how its datums, models, and tools may be utilized for their programs and projects. Pam organizes numerous workshops and training opportunities in Colorado, including training in Continuously Operating Reference Stations (CORS), NGS’ Online Positioning User Service (OPUS), DS-World, precision digital leveling, and Height Modernization (HT MOD), first order leveling. She has recently created a Height Team with CDOT that she will be expanding to others soon. Pam is a member of NOAA’s Central Region Team, the Colorado Spatial Reference Network (CSRN), Central Chapter of the Professional Land Surveyors of Colorado, GIS Colorado, and Rocky Mountain Urban and Regional Information Systems Association (URISA).

PLSC would like to thank our Sustaining Members and Sponsors:

Aztec Consultants
Terrametrix, LLC

PLSC is a proud
member of
Professional Land Surveyors of Colorado
PO Box 441069
Aurora, CO 80044
Phone - (303) 551-3266 Fax - (720) 230-4846
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Check out our chapters:
Central Colorado Professional Surveyors | Colorado Spatial Reference Network | Northern Chapter - PLSC | Northwest 1/4 Colorado Land SurveyorsSouthern Chapter Professional Land Surveyors | Southwestern Chapter - PLSC, Inc. | Western Colorado Land Surveyors