3TEN Surveying

08/19/2026

Getting control set this morning for our staking project of the Meridian Apartments in Pierre.

08/12/2026

Getting site control set up at the Pierre Airport for new taxiway expansion.

07/10/2026

3Ten is very excited to share the news....

We have opened our third office location in Pierre, SD!! You can find us at 111 W. Dakota Avenue!!

We will be highlighting our team and projects in the upcoming weeks. Hoping to add to the rich history of the Capitol City and serve the community and region with Land Surveying services for years to come.

3tenls.com

09/06/2025

3Ten would like to extend a warm happy birthday to Miles Inn. Welcome to the century club. Siouxland Proud. #1925 #1908

03/16/2024

3Ten Surveying is proud to announce their asset acquisition of MLS & Associates in Sioux City, IA. MLS and its predecessors are the oldest continually operated Survey firm in the area if not the entire Upper Midwest with over 116 years of Surveying and Design experience dating back to 1908!

MLS and its predecessors have a rich history being the lead Surveyor on many projects that Siouxland natives will recognize: Dakota Dunes, Whispering Creek, Stoneridge, Gateway, Inc.'s facilities in North Sioux City, the Terra Centre and City Hall in Sioux City, as well as the construction of the Tyson Events Center and Siouxland Ethanol in Jackson, NE and many commercial buildings, hospitals, schools and other subdivisions.

Douglas Mordhorst, the owner of MLS will remain on with 3Ten Surveying for years to come. Doug has spent his entire life surveying in the area and has 54 years of mastering his profession! We look forward to having Doug as a mentor and source of knowledge for future projects.

There have been a long line of expert Surveyors that came before Doug that we will honor on our future website update. Some of those great surveyors you might know or have read about such as Ronald Schieuer, Robert Force, Birney C. Wooley, Charles M. Finley and Rudy Rath who some would remember from Finley & Rath who were the originators of this firm. Many Surveyors, Engineers and Real Estate professionals still use the Finley & Rath book as a guide to what was mapped over the entire Sioux City metro area before the invention of GIS.

3Ten Surveying will add the current MLS office space at 515 7th Street in downtown Sioux City to their office locations.

Thank you Doug for trusting 3Ten to carry on what you and others have worked so hard to build. We look forward to servicing your clients and being the first choice Land Surveyors here in Siouxland and all across Iowa, Nebraska and South Dakota

Boundary Surveys, ALTA / NSPS Land Title Surveys, Topographic Surveys, Construction Staking, Mortgage Loan Certificate, Flood Certificate / LOMA, and Tower and Utility Surveys.

03/10/2024

Happy 3Ten day. Enjoy the beautiful weather and the daylight savings!

11/22/2023

Getting in some topographic survey work before the holiday weekend. Happy Thanksgiving from 3Ten!!

10/26/2023

2023 Arkansas Land Surveyor Fall Conference

07/27/2023

Surveying next to the World's Largest Ringneck and finding some shade in between property corners.

07/19/2023

Always stop at Lemonade stands!! Stay cool out there friends.