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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.


Geodetic Certification Program
Posted February 28, 2016

The American Association for Geodetic Surveying (AAGS) is in the early stages of pursuing development of a Geodetic Certification Program at the request of NSPS and ASPRS. As part of that process, AAGS created an online survey. The purpose is to raise awareness of the proposed program and identify the required depth of geodetic knowledge. More information can be found on the survey web page at Feel free to share the survey link with any other geospatial professional organizations or individuals. The program is being developed in cooperation with other organizations, so you may receive (or have received) additional announcements. Please forgive any multiple postings. Thank you in advance for your willingness to participate in this important survey! Best regards,Michael L. Dennis, RLS, PEChair, AAGS Geodetic Education and Certification Committee


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.

Forget Geocaching - Bench Mark Hunting is the New Nerdy Hobby
Posted May 08, 2015

Enthusiasts search for geodetic survey disks wherever they may be: cities, country roads, a man's front yard


ALTA/ACSM questions
Posted December 08, 2014

NSPS Thanks to all who have commented on the series of questions that have been posted about the ALTA/ACSM Land Title Survey Requirements. From time to time, we receive requests for access to the entire series of questions. Access can be achieved through the link, and in the search box type in ALTA. NSPS also plans to provide this link directly from their soon-to-be-completed new website.

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GISITR Sponsored Social Networking Event

GISITR Sponsored Social Networking Event Tuesday, July 26th at Fados Irish Pub across from Coors Field...

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Central Colorado Professional Surveyors- Surveyors Social

This event will take the place of the monthly general meeting. Please join your fellow colleagues and...

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GIS in the Rockies

GIS in the Rockies is the Rocky Mountain West’s premier geospatial information and technology...

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Surveyors Rendezvous 2016

The Verplanck Colvin Story Adirondack Wilderness Surveyor and Savior Establishing the Largest Park...

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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

In 1954 Gaby Neunzert came to the U.S. from Switzerland by way of Beirut, Lebanon. Following a 3 year side trip with the U.S. Army, Gaby graduated from the Colorado School of Mines in Petroleum Engineering. After graduation, a missile job and a Master of Science in Petroleum Engineering, Gaby was given the opportunity of a lifetime when in 1979 he was asked to start and also teach the surveying program at Red Rocks Community College. Ten years later came the call to teach surveying, and other topics in the Civil Engineering option at Mines. From 1991 until his retirement in 2000 as Professor Emeritus, he wrote an extensive GPS text, as well as several surveying manuals. Gaby is a retired licensed surveyor in Colorado. For the near future, Gaby would like to share his knowledge of surveying, GPS and general knowledge with as many people as possible. Since retirement from Mines, Gaby has written a book entitled “Subdividing the Land” and has been involved in speaking at workshops.


PLSC would like to thank our Sustaining Members and Sponsors:

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Professional Land Surveyors of Colorado
PO Box 441069
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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