Michigan City has two launches. One at Washington Park all the way at the end of S.R. 421/Franklin St. The other at the east end of 7th street and its junction with E. Michigan Blvd./S.R. 35. I use this one due to facilities, there. In East Chicago I go to Pastrick Marina on. S.R. 912/Cline Ave. The one in Portage is off S.R. 249.
I recommend a Salmon stamp if you want in on that fishery. Otherwise your IN license is OK.