How LiDAR Works in the Field
LiDAR systems fire rapid pulses of laser light and measure the time it takes for those pulses to bounce back from surfaces. The resulting point cloud can be processed into highly accurate 3D models of the ground, vegetation, and any structures or disturbances. Survey-grade units mounted on drones can penetrate forest canopy to a useful degree, revealing the shape of the forest floor below. Handheld scanners allow closer, higher-resolution work on specific sites such as possible nests, footprints, or cave interiors.
On Expedition Bigfoot, the team has employed both aerial and ground-based versions. Early seasons featured LiDAR-equipped drones, including work with specialists from PrecisionHawk, to map large tracts of Oregon forest while looking for signs of possible nesting activity. Later seasons expanded the approach. In Northern California’s Lost Coast region during Season 5, the team deployed a fleet of survey-grade LiDAR drones alongside multispectral cameras. The combination was intended to detect ground disturbances and vegetation patterns that might indicate repeated use by a large animal. Handheld scanners were then used on the ground to examine specific locations in greater detail.
Imaging specialists such as Pete Kelsey have appeared multiple times to operate the equipment and interpret the resulting data. In some episodes the scans have been used to create digital models of caves, to analyze the geometry of the Patterson-Gimlin film site, and to examine structures the team believes may be nests.
The Search for Nesting Clusters
A recurring theme across seasons is the idea that Sasquatch, if it exists, builds or uses nests similar to those of great apes. Investigators point to interwoven branches, matted vegetation, and ground depressions in secluded spots as possible evidence. They argue that clusters of such features could indicate family groups or breeding areas.
LiDAR has played a direct role in locating candidates for these sites. In the Northern California expeditions, drone scans revealed what the team described as clusters of ground disturbances and possible nest-like features spread across thousands of acres. Once the data highlighted promising areas, ground teams moved in to examine them. Episodes such as “Nests of Giants” and related Season 5 installments show the investigators following LiDAR leads to structures they interpret as nests, sometimes collecting hair samples, environmental DNA swabs, or additional scans for later analysis.
Similar approaches appear in other seasons. Handheld LiDAR has been used to document individual nest candidates and to scan for anomalies in mines or dense timber. In one Season 3 segment, a specialist walking with a handheld scanner reported an unexpected large shape moving through the scan data. Real-time 360-degree LiDAR arrays have also been set up around base camps in later seasons to monitor for movement at night.
The team treats these findings as significant leads. Biologist Mireya Mayor has compared some of the woven structures to gorilla nests. Other members, including Bryce Johnson and Russell Acord, have linked clusters of features to possible family or breeding activity. Outside experts consulted on the show, such as anthropologists or podiatrists examining related footprint scans, have offered opinions on whether the evidence is consistent with a large bipedal primate. Those opinions remain interpretive.
What the Technology Can and Cannot Prove
LiDAR is excellent at mapping physical terrain and detecting unusual shapes or disturbances. It cannot identify the species that created a nest-like structure, nor can it confirm that any particular anomaly belongs to an unknown animal. The same applies to other tools used alongside it on the series, including thermal imaging, trail cameras, and 3D footprint scanners.
No independent scientific body has verified the existence of Sasquatch nests or accepted the show’s interpretations as conclusive proof of the creature. The structures and scan anomalies remain claims advanced by the Expedition Bigfoot team and the specialists who appear with them. Viewers see the process of data collection, the discussion of results, and the investigators’ conclusions. Those conclusions are presented as part of an ongoing search rather than as settled science.
The series itself has continued through multiple seasons. Season 5 focused heavily on Northern California and nesting activity in 2024. Season 6 moved into Washington in early 2025. As of mid-2026, earlier seasons remain widely available, and the core approach of combining LiDAR mapping with ground investigation has been a consistent element of the production.
Why the Method Matters to the Search
Dense Pacific Northwest and Northern California forests are difficult to survey thoroughly by traditional means. LiDAR gives the team a way to prioritize effort, covering large areas from the air and directing ground teams to specific coordinates. When the scans highlight clusters of disturbances in areas with prior sightings or other evidence, the investigators treat those locations as high-priority targets.
Whether those targets ultimately yield definitive proof is a separate question. The technology itself is not in dispute. Its application on Expedition Bigfoot illustrates both the expanding toolkit available to field researchers and the persistent gap between suggestive data and scientific confirmation.
Final Thoughts
Expedition Bigfoot has made LiDAR a recurring part of its strategy for locating possible Sasquatch nesting clusters. Drone-based and handheld systems create detailed 3D maps that help the team identify ground disturbances and structures they interpret as nests. The process is systematic, the equipment is real, and the investigators openly discuss their findings on camera. At the same time, the interpretation of those findings as evidence of an unknown primate remains unverified by the broader scientific community. The series continues to use advanced mapping as one tool among many in a long-running search that has yet to produce conclusive proof.
