Looking for a full shape file of the Mississippi River basin

Question

I'm currently looking for a complete GIS/QGIS shape file of the Mississippi River basin. I have been able to find parts of both the upper and lower, but can not seem to find a complete shape file. This is what I'm looking for: http://steamboattimes.com/images/maps/map_mississippi_watershed1160x971.jpg

Any help would be great!

-N

DanPatterson_Retired · Answer

merge the parts if they form a whole

​