WGNHS map sales office to close on December 30, 2019

September 17, 2019

The Wisconsin Geological and Natural History Survey (WGNHS) plans to close its map sales office on December 30, 2019. Users of USGS topographic maps should use this as an opportunity to switch to the newer “US Topos” that have replaced the USGS’s legacy paper topographic maps.

Using geospatial PDFs

August 1, 2017

This document provides an overview of geospatial PDFs and their basic features, as well as some of the tools available to interact with these files, using USGS US Topos as a case study. 2nd edition, published in 2019.

Elevation/LiDAR Data

July 13, 2017

Sources of Wisconsin elevation data derived primarily from LiDAR.

Satellite Imagery Data

Historically, satellite observations of the Earth’s atmosphere, land, and oceans have been acquired via satellites operated by federal agencies and space programs. Commercial sources are increasingly available and can supply very high resolution imagery to users for a fee. Both real-time and archived data are available from a variety of public sources.