“Northeast quadrant” appears to usually refer to a section of Washington, D.C. Here I mean the northeastern part of the contiguous U.S. (if one were to fold of map of it in half twice, the upper-right part, more or less).
This was generated using data from NASA’s [Shuttle Radar Topography
Mission][srtm]. The actual tiles come from [CGIAR-SCI][cgiar]. I used gdalwarp
to reproject and combine the tiles:
gdalwarp \