BAYOU BLACK: Latitude = 29.622274, Longitude = -91.053526, Zoom=13

River Mile Point(s)
Statute Miles Nautical Miles  Kilometers

Right Clicking anywhere on the map displays latitude, longitude, and address at that location:
Bayou Black joins the GIWW West in two places. Mile 58.9 in Houma, LA, and again at mile 83.8 near Amelia, LA.