Rosor Exploration
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Drone geophysics for mineral exploration

Know whereto drill.

Reveal the subsurface to accelerate your discovery.

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Trusted by

Discovery moves at the speed of data and understanding.

We combine UAV geophysical technology with expert interpretation to accelerate both — so your team gets to the answer sooner.

How it starts

From survey area to answer.

For extensive exploration projects running focused drilling programs, Rosor is the right partner for drone-borne geophysics. From running multiple methods in a single mobilization, rigorous in-field QA/QC, and expert interpretation with your team: every metre you drill is validated by data you can trust.

  1. 01

    Send us your survey area

    A shapefile, kml, or claim information. Nothing else needed to start.

  2. 02

    Talk it through with a geophysicist

    Thirty minutes on your program: what you are trying to answer, what has been flown before, where the drilling is headed. No cost, no pressure to proceed.

  3. 03

    Get a survey designed around it

    Recommended methods, line spacing and flight plan built against your geology and your questions, with a budget range.

What we measure

Five methods. One crew. One mobilization.

Each method measures a different property of your ground. Flown together, they give your team one co-registered picture.

Magnetics — Rosor survey data
01

Magnetics

The first read on structure: contacts, faults, intrusions. Flown at 5–100 m for resolution a higher platform can't match.

Explore Magnetics →

Interpretation

From data to geological understanding.

Cleaned and leveled data, map layers and an unconstrained model ship with every survey. How much further the interpretation goes is scoped to your program, with your geologists in it.

  • Six magnetic grids of the same survey area, each a different filter of the same data

    Standard Magnetic Inversion

    Every magnetic survey includes an unconstrained 3D susceptibility model to help visualize the depth, geometry and extent of magnetic sources.

  • A 3D susceptibility block model cut away beside the isosurfaces drawn from it

    Constrained Geophysical Inversions

    Incorporate geological, structural and petrophysical constraints to build more informed subsurface models.

  • An interpretation map: lithology, faults, magnetic anomalies and boxed drill targets, with a 3D model inset

    Integrated Geophysical Interpretation

    Combine geophysical and geological datasets to define structures, lithology, anomalies and exploration targets.

How it's flown

Most drone survey companies buy their aircraft. We build ours.

Drone systems built by explorers, for explorers.

More payload, more range, more ground coverage per day, fewer crews necessary, and more robust to meet the needs of mineral exploration. We build the aircraft from the ground up executing design, payload integration, and flight software development.

35 km
flight length on flat ground, a 15 km radius from one takeoff point
4 to 8×
the crew a competing drone operator needs to match our daily production
Up to 500 line-km
of magnetics production per day with multi-drone surveys

Start where you sit

Who we work with.

Exploration geologists

The mechanisms and case data to compare methods and providers.

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Exploration managers

The delivery record, references and how interpretation scales across a larger program.

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Geophysical consultants

An extension of your team. Published third-party proof you can hand to your client.

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Exploration leadership

The economic case: drill-ready targets, a disciplined program, the numbers your board reads.

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Case studies

Recent programs.

The figures as published, in the clients' own words.

Drone magnetics
New Found Gold — Gull River survey figure

Gull River

Grand Falls-Windsor, Newfoundland

New Found Gold
315
line-km/day on this program
~4,000
line-km completed

Almost 4,000 line-kilometres acquired across the program, completed on schedule despite delays from a wildfire evacuation interrupting it and geomagnetic storms. Sustained production without trading away data quality.

“The drone magnetic survey provided high-resolution structural insights that significantly improved our understanding of the subsurface geology, allowing us to refine our exploration targets.”

David Drover · Project Geologist

Read the Case Study →
Drone magnetics
International Explorers & Prospectors — Abitibi Lake survey figure

Abitibi Lake

Abitibi Lake, Ontario, Canada

International Explorers & Prospectors
10
days, site to deliverables
3
days of acquisition

Mobilization to final deliverables in ten days, with acquisition complete in three and no mechanical downtime.

“Throughout the duration of the project, Rosor maintained clear and efficient communication with our team. They demonstrated a strong commitment to meeting deadlines by processing the collected data within a very tight time-frame, ensuring that our exploration schedule remained on track.”

Peter Colbert · CFO

Read the Case Study →
Drone magnetics + LiDAR
Gatling Exploration — Larder Lake survey figure

Larder Lake

Larder Lake, Ontario, Canada

Gatling Exploration
13
priority areas delineated
84
km² surveyed

Thirteen priority areas delineated from ML-assisted interpretation, ranked for follow-up.

“Rosor has helped our exploration efforts both on the ground and with the drill bit utilizing their drone-borne surveys. They communicated effectively throughout the work program and processed the data within our tight time frame. We enjoy working with the team and look forward to using them again.”

Nathan Tribble · VP Exploration

Read the Case Study →
Drone magnetics
St. Barbara — Cochrane Hill survey figure

Cochrane Hill

Melrose, Nova Scotia, Canada

St. Barbara
~55
km²
3→1
blocks merged

Three magnetic blocks merged into a single coherent grid, one of them a legacy survey flown without proper quality geometry.

“Rosor managed to get a team onsite with only a few weeks' notice so that our survey could be completed within our tight timeframe. They also did a great job of merging a previous magnetic dataset with the newly captured data to create some impressive regional imagery.”

Daniel McDwyer · Manager of Exploration, Australia & Atlantic

Read the Case Study →

FAQ

Straight answers

01

What does a Rosor survey give my team?

Interpretation-ready deliverables. Every program ships raw data cleaned and leveled, map layers and images. For magnetics we include a 3D unconstrained VOXI model that integrates into your project. If you are interested in advanced interpretation, it is worked on in collaboration with your geologists through regular communication and updates.

02

How do you make sure the data is actually good?

The Zephyr Mag reports data-quality metrics that are reviewed daily while the survey is underway. The field team adjusts acquisition on that evidence, so problems are solved in the field rather than surfacing on a processing bench weeks later.

03

How fast can you mobilize?

Send a shapefile and you'll have a quote inside a week, and we mobilize on a contract. On magnetics and LiDAR programs, deliverables arrive within an average of 15 business days of completion. Larger programs and electromagnetic (EM) surveys are scoped individually, and we set that timeline with you before work starts.

04

Do you work with helicopters or just drones?

We fly drones, and we're honest about where that wins: focused programs at the drill-targeting stage. At regional or basin scale, conventional airborne is the right call. Our electromagnetic (EM) surveys map conductors from surface down to 1000 m depending on ground conductivity. For targets below that, we'll tell you in the first conversation which method fits.

Talk to an expert

Talk to a specialist about your property.

Bring the geology, the targets and the questions you need answered.

Send us your shapefile. We'll come back with a preliminary read, a coverage plan and a budget range.

Book a consultation