Nearly Every USGS Topo Map For Free
A killer feature using this dataset would be an API to get ground-level elevation (above sea level) by passing a latitude and longitude pair. This exists in about 10 different APIs across the web already, but they're wildly expensive (or low-res). Google's is wrapped inside Maps for Business, which IIRC would cost far more than most startups can afford.<p>Of course, we can get the data "for free" from the USGS. But then we'd have to host and query the data ourselves, which becomes...expensive. I wonder if there's an inexpensive solution out there, for high-res elevation APIs?