This course covers the use of terrestrial laser scanner for surveying purposes. The course begins with an understanding of evolution of the laser as a sensing technology. It continues with the geometric applications leading to data processing and point cloud aggregation. Georeferencing and coordinate transformation of point clouds are performed, after which shapes, and dimensions of features are extracted. Two dimensional maps can be created from the extracted features. Data quality and Accuracy analysis are performed and errors and blunders are identified and removed. Digital Terrain Models (DTM) and Digital Surface Models DSM) are developed from the point clouds from which volumes of excavation on construction or mining sites, volumes of subsidence can be determined. Interpretation and identification of features will be performed on the point clouds based on the reflectance characteristics of the point clouds.