Non-Invasive Aerial Archaeology

Drone Archaeological Surveys.

Detect crop marks, earthworks, and buried features without a single trowel in the ground. Our specialist drone operators combine aerial photogrammetry, thermal imaging, and multispectral sensors to reveal what lies under your site — before any intrusive work begins.

“Every drone pilot on this network is personally vetted by me — insurance, qualifications, flight history.”

Peter Leslie · Founder & GVC Drone Pilot

Trusted by site managers & agencies across the UK

Investigating a site?

Post your details to compare quotes from aerial-archaeology specialists.

You can't excavate a county just to rule things out.

Planning archaeologists, developers, and estate managers need a non-invasive first pass that narrows the digging to where the features actually are.

Unknown Features Derailing Planning

Developers discover undocumented buried features mid-excavation and the programme collapses into watching briefs and salvage digs. Aerial detection ahead of spade-work reframes the whole archaeological risk.

Blind Geophysics on Large Estates

Walking a 100-hectare estate with a magnetometer cart is slow and, without context, blind. A drone survey cheaply identifies the 5–10 anomalies worth targeting, so the geophys crew land their effort where it counts.

Scheduled Monuments Untouchable

You cannot put a trowel into a Scheduled Ancient Monument without consent. Drone-based photogrammetry, thermal, and multispectral give researchers genuine new data without disturbing a single stone.

Archaeology doesn't tolerate a drone pilot who flies a camera for property agents on Tuesdays.

By Peter Leslie, Founder & GVC Drone Pilot

Connect on LinkedIn

A good aerial archaeology flight is half flying and half knowing when to fly. Crop marks appear for a week or two a year on the right soils and the right crops; parchmarks show in long droughts; thermal differentials favour dawn over midday.

The drone operators I route this work to specialise in heritage projects and work alongside commercial archaeology units. Several hold Historic England consents for flight over Scheduled Monuments and are familiar with the MORPHE-style documentation your curator will expect.

The result is data a county archaeologist actually wants to see — not a pretty video.

Heritage-Specialist Drone operators

SAM Consent & MORPHE-Style Reporting

Three layers of evidence from a single flight.

Photogrammetry, thermal, and multispectral data together expose features no single sensor can see alone.

Crop-Mark Orthomosaic

A geo-referenced, high-resolution orthomosaic captured at peak crop-mark conditions. Features that are invisible from the ground appear as tonal differences in cereal, grass, or parched lawn.

Thermal Differential Map

Dawn and dusk thermal imagery reveal buried walls, ditches, and pits via residual heat contrast. Delivered as a geo-referenced thermal raster alongside the visible-band orthomosaic for direct comparison.

Multispectral Index Layers

NDVI and related vegetation-stress layers from a multispectral sensor. Buried features stress crops and grass in predictable ways; multispectral makes that stress measurable, not just visible.

From desk-based research to flown dataset in 3 steps.

Scoped around soil, season, and consent — not just the weather.

Scope the Site

Share HER data, desk-based assessment findings, and the questions you want answered. We match an drone operator with heritage experience and the right sensors.

Time the Flight

The drone operator plans for optimal crop-mark season, dawn thermal window, or post-harvest conditions — and obtains any Historic England or landowner consents required.

Deliver the Evidence

You receive geo-referenced orthomosaic, thermal rasters, multispectral layers, and a written interpretation ready to submit to the county archaeologist or HER.

Start Your Project Brief

Evidence that changed what we knew.

Archaeologists, curators, and estate managers relying on drone-based aerial detection.

"The thermal layer picked out an Iron Age enclosure that had been invisible on the ground for decades. Our follow-up geophysics had a focus point, not a fishing exercise. Changed the whole landscape project."

Dr Gareth T.

Landscape Archaeologist, Oxford

"The crop-mark orthomosaic flew the week the barley was stressing. We had ring-ditches showing up on our allocation site two months before any ground investigation. Pre-planning archaeology cost fell accordingly."

Isla R.

Heritage Consultant, Salisbury

"Scheduled Monument consent in place, multispectral survey flown within the consent window, and a MORPHE-style report landed inside six weeks. Exactly the kind of robust, non-invasive work our curator wanted to see."

Bryn P.

Estate Archaeologist, Shrewsbury

Archaeological Survey FAQ

Permits, timing, and what a drone can and cannot see under the soil.

Do we need Historic England consent to fly over a Scheduled Monument?

Overflight itself is not generally a Scheduled Monument Consent issue, but taking off or landing within a Scheduled Area typically requires SMC. Drone operators in our network are experienced in liaising with Historic England, Historic Environment Scotland, and Cadw and can handle the consent paperwork as part of the brief.

When is the best time of year to fly for crop marks?

Peak crop-mark season in lowland England typically runs from late May to mid-July on cereal crops, and parchmarks on grass appear during prolonged dry spells. We monitor soil-moisture and phenology data for the region and time flights to catch the optimal window — often with only a few days' notice.

Can a drone replace geophysical survey?

No — but it transforms where and how geophysics is deployed. Drone-based aerial detection is excellent at identifying candidate features across large areas cheaply; magnetometry and resistivity then confirm and characterise those features in detail. The two techniques are complementary, not substitutes.

Will the county archaeologist accept drone data as evidence?

Yes, provided it's presented as part of a properly documented survey — geo-referenced raster layers, sensor metadata, flight parameters, and an interpretative report in line with CIfA and MORPHE expectations. All our matched drone operators deliver to that standard and can cite previous submissions accepted by HERs across the UK.