Welcome to the District of Columbia
Association of Land Surveyors (DCALS)

Founded in 2001, DCALS is a non-profit organization dedicated to the advancement of the sciences of Surveying and Mapping and to the improvement of the Profession of Land Surveying in the District of Columbia. 



DCALS garments to show your support is now on the store page. Fine attire from Lands End.

DCALS 2015

Two envents you need to Attend!


Please join DCALS on March 11 - at Tony Cheng's in Washington - for an expert presentation on HIGH-DEFINITION 3D LASER SCANNING. This remarkable new technology is quickly supplanting almost everything we surveyors were ever 'conventionally' trained to do. When handled right, 3D Laser Scanning can accomplish in only hours what a full survey crew needs weeks or even months to shoot --- and there's no comparing the quantity or quality of data. It's truly astonishing how far and fast this technology has advanced, from the first unpredictable reflectorless EDMs of only a few years ago.

Even more amazing is how well-suited 3D Laser Scanning is turning out to be in dense 'urban-infrastructure' environments like Washington DC. For the first time, data can now be easily 'captured' that was previously almost completely unobtainable.


Our presenter on March 11, professional land surveyor Joseph Romano, is an internationally-recognized expert in High-Definition 3D Laser Scanning. He's a frequent instructor at scanning conferences across the country, and serves on the national committee working to formulate accuracy and control standards for this cutting-edge technology. His presentation will cover both 'static' scanning, such as used on existing buildings, as well as the new 'mobile' operations being conducted from fast-moving vehicles for highway surveys.

Most importantly, Mr. Romano will discuss the efforts now being undertaken to provide a crucial ingredient currently lacking --- national accuracy standards and specs --- so that all scanned data comes out "survey grade" (meaning "as good as surveyors") and uniformly reliable for base-mapping. That's where expert land surveyors are the most important people in the equation, because only they understand the complex control requirements needed to keep these projects "tight."

To register click here!

NOAA / NGS GPS Observations on Bench Marks Webinar

When:  March 5, 2015    Time:  3:00 – 4:00 pm ET

NOAA’s National Geodetic Survey encourages anyone with survey-grade

 Global Positioning System (GPS) receivers or GPS-enabled phones and hand

 held devices to help collect GPS on Bench Marks.  This webinar will provide

 guidance to collect GPS observations at any time, including during National

 Surveyors Week (March 15–21, 2015). Joining the 2015 effort will help raise

 awareness about professional surveying while improving the National

Spatial Reference System (NSRS).

Register here} http://www.ngs.noaa.gov/corbin/class_description/GPS_on_benchmarks.shtml


District of Columbia Association of Land Surveyor’s Store is now online for your convenience with Credit Card purchases through secure server PAYPAL most credit cards accepted.  


A history of D.C. Boundary Stones found by Dave Doyles for you DCALS members and Visitors! PDF link



Save District of Columbia Boundary Stones.