LiDAR DEM and orthophoto of the La Laguna paleoseismological trench site on the Motagua Fault, Guatemala

This survey was done in connection with a paleoseismological trenching campaign on the Motagua Fault in Guatemala. LiDAR Survey We covered an area of 130,000 m² in one flight with a DJI Matrice 200 quadcopter in January 2025. We flew at an altitude of ~50 m above the ground surface. We used a tightly-coupled kinematic solution integrating PPK GNSS and a 9-DOF IMU was calculated using the TerraPos software processor. This was used to align the laser returns into the point cloud with an average density of 170 points/m². Noise and foliage were removed using the PDAL software to create a bare-ground point cloud. ArcGIS was used to convert the point cloud into a DEM with high-resolution contour lines. QGIS was used to generate hillshades. Orthophoto Survey We used a DJI Mini drone at an altitude of 50 m to collect overlapping