mapping

Laptop with QGIS, a desktop GIS software program

GIS 101: Learn About GIS

Caitlin Dempsey

This GIS 101 page is the launch page for accessing information about GIS and geospatial technologies on GIS Lounge.

map-central-valley

Cartographic Resources

Caitlin Dempsey

Discover effective spatial data display and map design. Access resources on color representation, map layout, and showcasing geospatial information.

A USGS elevation benchmark in Bryce Canyon National Park. Photo: Alex Demas, USGS, public domain.

Survey Markers and Benchmarks

Mark Altaweel

Benchmarks are a type of survey markers whose elevations have been surveyed as accurately as possible based on the technology at the time.

Data Driven: GIS Guiding the Future

Troy Lambert

Mapping has always been data driven, and the more data we gather, the more important practical visualization of that data becomes.

Screenshot from a web map showing the disappearance of natural land in western United States.

Map Documents America’s Vanishing West

Elizabeth Borneman

A new mapping study is documenting the vanishing American West, beginning in 2001 and ending in 2011.

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