National Geospatial Program

Lidar Explorer  as of 8/21/2020

Geiger mode 3DEP lidar point cloud over Chicago, IL from 3DEP Project USGS Lidar Point Cloud IL 4County Cook 2017

Example of elevation derived hydrogrpahy data 

Bored with nothing to do? Not enough “tiger” shows to watch? How about exploring something new? Try The National Map Corps!

Discover new places, learn new things along with contributing to our national mapping efforts. And, for your submissions, you will earn points toward virtual badges. What are you waiting for?

JOIN TODAY

Bored with nothing to do? Not enough “tiger” shows to watch? How about exploring something new? Try The National Map Corps!

Discover new places, learn new things along with contributing to our national mapping efforts. And, for your submissions, you will earn points toward virtual badges. What are you waiting for?

JOIN TODAY

Bar graph showing 3D Elevation program fiscal year 2015-2019 expenditures

Bar graph showing 3D Elevation Program data acquisition federal and non-federal investments for fiscal years 2015 - 2019.

Graphic copy of a USGS-generated Brazos River inundation map. 

By the end of this lesson, you will be able to load multiple LAS files, define and use a polygon area of interest to subset LAS files, and generate and export raster surfaces and contours derived from the LiDAR point cloud. If necessary, please review Lesson 10c1 for guidance with importing LAS files, filtering, and visualizing LiDAR point clouds in Global Mapper.
 

This lesson will cover additional LiDAR point cloud processing and analysis features in Global Mapper.
 

Selected area from a 3/7/19 US Topo map depicting the transportation features (roads, railroads) in the selection.