Applies some small fixes to how we download grade from USGS. The USGS tile system includes all the points below the tile index. For example, the point (39.5, -104.5) corresponds to the tile n40w105. Previously we were assuming that point would be included in the tile n39w104.
Applies some small fixes to how we download grade from USGS. The USGS tile system includes all the points below the tile index. For example, the point (39.5, -104.5) corresponds to the tile n40w105. Previously we were assuming that point would be included in the tile n39w104.