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Welcome to the PLSC Website!

PLSC is a non-profit association 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.


DSWorld Update Posted
Posted October 29, 2018

Update 4.02.01 has been posted. This update resolves a problem plotting OPUS marks in Google Earth.Other enhancements:Tool for adding and subtracting angles (sexigesimal math)GPS CalendarStreet address from Lat/LonMagnetic Declination from Lat/LonTo download and install the update, start DSWorld and click 'Tools>Update Program' from the main menu. If you get an error message about a url, copy the attached file to your c:\NGS-Apps\DSWorld\ folder, exit the program, and try again.If you get a message that says 'Permission denied', the rights for your c:\NGS-Apps\ folder, subfolders and files may need to be changed to 'Modify' for all users - see your IT rep.Malcolm R. Archer-Shee, LS, Developer

GPS on Benchmarks Deadline Extension
Posted August 29, 2018

NGS has extended the date to Sept 21 for the GPS on Bm for the geoid model. NGS has added a dashboard with statistics about the GPS on BM information. It provides the number of stations identified, observed and percentage for both the A and B priority as well as the total %. We are making progress, but Colorado still has about 50% to go.


PLSC Is Looking for Website Help
Posted June 06, 2018

PLSC is updating its website and content, and we need your input. If you are interested and have great ideas, let us know. Email or call Becky at 303-551-3266.

Rocky Mountain Surveyors Summit
Posted January 15, 2018

Online registration and program information is now available for the 2018 Rocky Mountain Surveyors Summit. Don't miss your chance to earn continuing education and CFedS credit. We have an exceptional lineup of speakers this year!


Classified Ads

TitleEmployerPost Date
Affiliate Faculty (Category III)Metro State Univ.10/08/18
Field Land SurveyorESE Consultants10/10/18
Mapping ManagerArapahoe County11/07/18
PLS ManagerAscent Geomatics Solutions10/19/18
Professional Land Surveyor – Project ManagerAztec Consultants Inc.11/05/18
Senior Project Manager - TransportationWoolpert11/06/18
Survey Crew ChiefMartinMartin11/01/17
Survey Party CiefSGM11/05/18
Survey Team LeadNavarro Research and Engineering11/15/18
Survey TechnicianDenver Water10/01/18
Survey TechnicianSGM11/05/18
Survey Technician - FieldDenver Water11/06/18

PLSC Events


SCPLSC - Members Meeting - Double Tree Hilton - COS

SCPLSC - Members Meeting - Double Tree Hilton - COS When:    Tue, November...

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Northern Chapter Social @ Eagles Hockey Game

We will be going to the Eagles Hockey game on December 1st. We have reserved balcony space beginning...

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SCPLS Christmas Party

SCPLS - Christmas Party - Miramont Castle When:    Fri, December 7, 5:30pm –...

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PLSC Refresher Course


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PLSC Refresher Course


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Other Industry Events


2019 PLSC Refresher Course

The Professional Land Surveyors of Colorado are offering a comprehensive Land Surveying Refresher Course...

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Geospatial Summit

NGS is Modernizing the National Spatial Reference System (NSRS)   In case you missed it: NGS...

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2019 SHS Rendezvous

We are excited to announce the Surveyor’s Historical Society (SHS) is planning its ANNUAL RENDEZVOUS...

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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

Thomas Breitnauer is a Professional Land Surveyor for the Denver International Airport Survey Section. He has been involved in land surveying since 1985 and is experienced in all types of land surveying. Thomas is licensed in the States of Colorado (1994) and Arizona (2004). Since the introduction of Global Positioning Systems (GPS) to land surveying in the mid-1990’s, Thomas has learned how to set up control networks, process fast static sessions and establish strict quality-control procedures for verification of data content and position. This experience is now benefiting Denver International Airport with the establishment of their own Virtual Reference System (VRS) and seasonal monitoring of Primary Airport Control.

  Thomas is trained in the following programs; National Geodetic Survey (NGS) OPUS Projects, Trimble Business Center and Autodesk Civil 3D. Thomas attended Colorado State University from 1978 to 1981 and the University of Idaho from 1981 to 1982.


PLSC would like to thank our Sustaining Members and Sponsors:

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PLSC is a proud
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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