Graves and disturbed ground.
Look for backfilled grave shafts and changes in the surrounding soil. Survey results can guide an investigation; they do not confirm human remains.
Geophysical software & survey instruments
TERRA — earth. SCRY — to discern what is hidden.TERRASCRY: seeing what the earth hides.
Geophysical instruments and survey software
We’re building tools to investigate graves, search for unexploded ordnance (UXO), and map wreckage and buried structures. TERRASCRY combines ground measurements with maps and site records to help teams decide where to look more closely.
Product development · Evaluation and procurement inquiries welcome
Our mission
A grave may leave disturbed soil; a crash site may leave scattered metal. We’re building TERRASCRY to investigate these traces, search for buried ordnance, and map structures and excavations beneath the surface.
Look for backfilled grave shafts and changes in the surrounding soil. Survey results can guide an investigation; they do not confirm human remains.
Locate metal anomalies that could be buried ordnance. Identification and clearance belong to qualified UXO specialists.
Map buried fragments, components, and debris concentrations to help establish the extent of a crash site.
Investigate earlier structures and excavations where their materials or fill differ from the surrounding ground.
These are intended uses for instruments still in development. What a survey can reveal depends on the target, its depth, the surrounding ground, and how measurements are collected.
Intended survey workflow
Use TERRASCRY to prepare surveys and review recorded measurements. Pathfinder is intended to locate areas worth a closer look. Where appropriate, HIRT adds a focused investigation between inserted probes.
01 · Pathfinder
A harness-supported instrument is designed to collect measurements along walking routes. Magnetic gradiometry measures changes in the magnetic field; above-ground electromagnetic coils add information about conductive soil and metal, including non-ferrous metal.
02 · HIRT
HIRT means Hybrid Inductive-Resistivity Tomography. Its design places sensing elements at known positions and depths within a selected area. Measurements across different probe combinations help constrain a three-dimensional model of that volume.
HIRT requires ground insertion. On suspected hazardous ground, qualified assessment and clearance come before insertion. Probe count, spacing, depth, and suitability depend on the site.
Inspect HIRT hardwareInduction · coilsA transmitting coil produces a changing magnetic field. Receiving coils measure the response, providing information about conductive materials between and around the probes.
03 · TERRASCRY software
Survey readings are evidence. A subsurface model is an estimate built from those readings and physical assumptions. TERRASCRY is being developed to compare them with terrain, imagery, and site records—and make uncertainty visible before a team decides what to investigate next.
Explore the softwareLive acquisition and broader sensor integration are still in development.
Survey instruments
Pathfinder is designed for surveying on foot. HIRT uses a probe grid to investigate a selected area. Both instruments are in development.

Handheld magnetic and electromagnetic surveying
The design pairs magnetic sensors with electromagnetic coils to measure changes across a site, recording the position of each reading.
Intended role Walk survey lines and map areas that warrant a closer look.
Discuss Pathfinder

Crosshole subsurface imaging
The design uses coils and electrodes on inserted probes to measure the ground between them. Those readings help estimate how conditions change with position and depth.
Intended role Investigate the shape and extent of a feature within a probe grid.
Discuss HIRTContact us for current specifications and evaluation plans. These are CAD renders of designs under development; bench and field qualification are still ahead.
TERRASCRY software
Review recorded readings beside terrain, aerial imagery, and a model of the ground. Check where a signal came from and how the interpretation fits the site.

Map, 3D & cross-section
Move between the map, a 3D view, and a cross-section. Compare terrain and imagery with recorded readings and modeled results.
Site preparation
Bring together earlier surveys, maps, and imagery. Check what each source covers and where information is missing.
In development: recorded magnetic survey workflows, terrain and imagery, local run records, and model inspection. Broader sensor integration and live field acquisition are ongoing work.

Government, universities & institutions
We’re building for government survey teams, researchers, and commercial operators. Bring us a site, a dataset, or a measurement problem to discuss.
Tell us what you need to find, where you work, and what evidence you need before taking an instrument into the field.
Ask about specifications, evaluation plans, development schedules, and support before planning a purchase.
Discuss field studies, reference datasets, instrument testing, and methods development.
Product & partnership inquiries
Contact us about TERRASCRY software, Pathfinder or HIRT instruments, technical evaluation, or future procurement.