Can We Improve Archeological Exploration?
Could archeological exploration be more inclusive, could it be more efficient? A group of middle school students think so…so they set out to make it happen.
Their project explores how drone-mounted, dual-frequency GPR paired with mixed reality visualization and real-time AI interpretation could improve archaeological site surveys while reducing physical barriers that have traditionally limited participation in fieldwork.
Hear it from the Inventors themselves! – Identifying the Problem in Archaeological Surveying
When our FIRST Lego League team from Brookfield, Wisconsin began working on this year’s UNEARTHED challenge, we wanted to address a real, unsolved problem in archaeology. As we researched current practices, we discovered something surprising: despite advances in sensing technology, archaeologists still face significant limitations in how they survey and explore sites.
Traditional ground-penetrating radar (GPR) carts struggle on rocky or uneven terrain. Excavations often take months or years. And perhaps most importantly, many people who want to pursue archaeology are excluded from fieldwork due to physical accessibility barriers. That realization stood out to us.
Why should participation in archaeology be limited by the physical demands of the tools themselves?
That question led us to create Project D.A.R.T.A.—Dual Artifact Recognition, Terrain, and Analysis.
What Makes D.A.R.T.A. Different
Our innovation combines four existing technologies in a new way: drones, dual-frequency ground-penetrating radar, mixed reality (MR) glasses, and custom AI software. Rather than pushing a heavy GPR cart across difficult terrain, D.A.R.T.A. explores the idea of flying GPR-equipped drones over a site while operators visualize subsurface data through mixed reality displays in near real time.
The goal is to rethink how archaeological surveys are conducted, especially in locations where terrain, vegetation, or accessibility pose major challenges.
The Drone Advantage
Mounting GPR systems on drones eliminates many of the terrain constraints associated with traditional surveys. Rocky hillsides, dense vegetation, and uneven ground no longer require clearing paths or maneuvering bulky equipment. Instead, drones can fly directly over these areas, collecting data without disturbing the site.
D.A.R.T.A. also incorporates dual-frequency GPR capability. Higher frequencies can be used for improved resolution when identifying shallow features, while lower frequencies allow deeper subsurface scanning. This flexibility allows surveyors to adapt to different site conditions without changing equipment. Larger drone platforms with extended battery capacity further support longer survey times and fewer interruptions.
Mixed Reality in the Field
Mixed reality is a core part of the D.A.R.T.A. concept. Using MR glasses, archaeologists can visualize GPR data while standing on-site, seeing interpreted subsurface features overlaid onto the physical environment. What appears to be an empty field could reveal the outline of buried foundations or structures through the display.
To improve usability and accessibility, the system incorporates voice commands, allowing users to control data views and system functions without relying on handheld controllers or physical inputs. This approach is intended to support archaeologists with mobility challenges or those working in difficult field conditions.
AI-driven software analyzes incoming radar data and highlights potential areas of interest, helping guide excavation planning and reduce guesswork.
Improving Accessibility in Archaeology
Field archaeology has traditionally required significant physical effort—pushing equipment, navigating uneven terrain, and spending long hours on active sites. D.A.R.T.A. explores how remote operation and visualization tools could allow more people to participate meaningfully in archaeological surveys.
With drone-based data collection, mixed reality visualization, and real-time audio and visual feedback, archaeologists could contribute from accessible locations on-site or potentially from remote settings. The project emphasizes inclusion, recognizing that expanding participation strengthens the field by bringing in diverse perspectives and expertise.
Evaluating Speed and Cost
As part of our research, we examined the economics of geophysical surveying.
Traditional manual surveys can cost approximately $3,000 per acre and require significant time to complete.
Based on simulations and published research, drone-based geophysical surveys could potentially cover much larger areas per day than manual methods. While performance depends on site conditions and regulatory factors, the analysis suggests that airborne approaches may significantly reduce survey timelines.
We explored multiple access models, including rental and purchase options, to make the technology more attainable for schools, universities, and smaller research groups. The goal was not just speed, but practical accessibility.
Educational Potential
As students, we are especially excited about D.A.R.T.A.’s educational applications. Mixed reality visualization allows learners to explore archaeological sites virtually, connecting history, geology, radar physics, drone engineering, and AI analysis in a single experience.
We developed simulation exercises that let students experiment with GPR frequency selection and observe how different subsurface layers respond. These activities demonstrate how sensing technologies are applied in real-world research and how interdisciplinary STEM skills come together in practice.
Lessons Learned Through FIRST Lego League
Working on Project D.A.R.T.A. through FIRST Lego League taught us how to identify real problems, evaluate existing solutions, and think critically about who benefits from new technology.
We learned to balance innovation with feasibility, analyze costs, and consider accessibility from the start.
Our simulations demonstrate how drone-mounted GPR systems could adapt to terrain and visualize subsurface features through mixed reality interfaces. Seeing virtual archaeologists interpret underground structures in real time helped us understand the potential impact of combining these technologies.
Looking Ahead
D.A.R.T.A. represents a conceptual approach to archaeological surveying that emphasizes speed, non-invasive methods, accessibility, and education. By reducing physical barriers, improving survey efficiency, and protecting fragile sites, technologies like these could influence how future excavations are planned.
Speed: Reduced survey timelines
Efficiency: Better targeting before excavation
Inclusion: Expanded participation regardless of physical ability
Preservation: Non-invasive site analysis
Learning: Strong connections between technology and history
Why This Matters
The UNEARTHED challenge asked students to think about how archaeology could be improved. Our answer was to explore how drones, GPR, mixed reality, and AI might work together to make surveys faster, smarter, and more inclusive.
Project D.A.R.T.A. was created by a FIRST Lego League team from Brookfield, Wisconsin, for the 2025–2026 UNEARTHED challenge. While still a student-led concept, it reflects how the next generation is already thinking critically about the future of sensing, accessibility, and archaeological discovery.
Learn more and connect with project D.A.R.T.A – https://project-darta.netlify.app/
Project D.A.R.T.A. (Dual Frequency Artifact Recognition, Terrain, and Analysis):
A student-developed concept created by a team from Wisconsin Hills Middle School, Brookfield, Wisconsin, for the 2025–2026 UNEARTHED challenge.
FIRST Lego League:
An international STEM program that challenges middle school students to research real-world problems and develop technology-driven innovation projects.
