Area around the El Salt site
AntiCompositeNumber, OpenStreetMap contributors
2019-08-14
<ul><li>Topographic data: <cite style="font-style:normal">NASA JPL (2013). "<a rel="nofollow" class="external text" href="https://lpdaac.usgs.gov/products/srtmgl1v003/">NASA Shuttle Radar Topography Mission Global 1 arc second</a>". <i>NASA AppEEARS</i>. NASA EOSDIS Land Processes DAAC. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.5067/measures/srtm/srtmgl1.003">10.5067/measures/srtm/srtmgl1.003</a>.</cite></li>
<li>Highways, Rivers, Buildings, and other point of interest data: OpenStreetMap</li></ul>