The Kouilou-Niari River Basin OSM, Based up on US Army map SA33
<a href="//commons.wikimedia.org/wiki/User:Hans_Braxmeier" title="User:Hans Braxmeier">Hans Braxmeier</a> &amp; <a href="//commons.wikimedia.org/wiki/User:Peter_in_s" title="User:Peter in s">Peter in s</a>, Location map:<a href="//commons.wikimedia.org/wiki/User:Gvf" title="User:Gvf">Gvf</a>
CC BY-SA 3.0
<a rel="nofollow" class="external free" href="https://maps-for-free.com/">https://maps-for-free.com/</a>, <a rel="nofollow" class="external free" href="https://maps.lib.utexas.edu/maps/imw/">https://maps.lib.utexas.edu/maps/imw/</a>, Location map:<a class="external free" href="https://commons.wikimedia.org/wiki/File:Congo_location_map.svg">https://commons.wikimedia.org/wiki/File:Congo_location_map.svg</a>