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This document provides lidar-derived elevation data for Napakiak, Southwest Alaska, collected on August 20, 2021. The data includes a classified point cloud, digital surface model (DSM), digital terrain model (DTM), and an intensity model. The survey was conducted to assess flooding hazards and coastal erosion. The data is available for download on the Alaska Division of Geological & Geophysical Surveys website. The document also includes information on the mission plan, processing report, survey report, and acknowledgments. The document provides detailed information on elevation differences at various points, including coordinates and measurements. It also includes information on non-vegetated and vegetated check points, with corrected point cloud elevations and the differences between the corrected point cloud elevations and the checkpoint elevations. The average elevation difference for the non-vegetated check points is -0.007 meters, with a minimum difference of -0.202 meters and a maximum difference of 0.115 meters. The average elevation difference for the vegetated check points is 0.184 meters, with a minimum difference of 0.007 meters and a maximum difference of 0.494 meters. [Extracted from the article]