Industry-leading experts in detection and classification of unexploded ordnance


Our team has over 15 years experience collecting and processing geophysical data for munitions response projects. We are an ISO 17025 accredited laboratory under the DoD Advanced Geophysical Classification Accreditation Program (DAGCAP).

In cooperation with GapEOD, we are the providers of the UltraTEM sensor for advanced geophysical classification projects within North America, and we are the developers of BTField acquisition and processing software.

Our goal is to provide clients with industry-leading geophysical data acquisition and processing services. Our services are based on innovative hardware and software technologies that have proven their success in a range of conditions.


The UltraTEM system, developed by Gap Explosive Ordnance Detection in partnership with Black Tusk Geophysics, is a multi-component multi-sensor system that uses time-domain electromagnetic induction (EMI) to detect and characterize buried metal. Highlights of the UltraTEM system include:

  • Deep detection with high current transmitters
  • Flexible multi-static transmitter and receiver geometry
  • Precise time synchronization of all sensor streams
  • Real-time data visualization in BTField
  • One-pass classification capability
  • Validated by DAGCAP for advanced geophysical classification

Read more about the UltraTEM

Watch an UltraTEM webinar

Contact us for more information on leasing the UltraTEM for your AGC project.


MPV Data acquisition

Data processing

Borehole classification

Marine classification


Project Timeline

Project Map


#401-1755 Broadway W
Vancouver, BC V6J 4S5

Phone: 604 428 3382