Open Topography provides a portal to high spatial resolution topographic data and tools.
If you gave me a 5 second countdown to choose one GIS data type to work with for the rest of my life…. I’d probably start screaming LIDAAARRRRR! Yes, I’d be all dramatic because you gave me a 5 second countdown to respond.
We all know that LiDAR Data is a rare, precious GIS resource. This is why Open Topography is so useful. It answers the question: “Where can we find LiDAR data?”. But if you’re looking for satellite-derived elevation data a bit more coarse, these free global Digital Elevation Models data sources will certainly help.