When my Michigan Road partner Kurt and I laid out the Historic Michigan Road Byway, most of the route was obvious. The road is still all there, with but a few minor reroutings. You can drive it from end to end.

We did puzzle, however, over how the road proceeded through a few cities and towns. Where the road entered and exited was always clear, but which streets it followed through town was sometimes not. We made our best guesses.

Thanks to the fabulous Indiana Transportation History group on Facebook, I was introduced to a book called Development and Lands of Michigan Road, prepared in 1914 by the Indiana State Board of Accounts. It looks like they found and documented the original 1832 surveys for the road! You can see this remarkable book here. 

This book clears up some mysteries, but creates others. The first puzzle it solves is the road’s original route through downtown Indianapolis.

Clarity into the route through Indianapolis

Looking at the book’s map, which represents the original Mile Square of Indianapolis, it is clear that the road enters downtown from the east along what is now Southeastern Ave. before turning west onto Washington Street, which is also the National Road. It’s also clear that the road exits to the north on what is now Dr. Martin Luther King, Jr., St.

But it’s also clear that the road as surveyed turns north on Meridian Street, goes around Monument Circle, and then heads northwest along Indiana Avenue.

When we laid out the byway, we made it follow Washington Street all the way across the Mile Square to its edge at West St., and then north. It’s easy to describe, easy to follow. It also guides travelers past the lovely Indiana Statehouse, a nice bonus.

The original route, in contrast, is hard to follow. Monument Circle is frequently closed for events. One block of Indiana Avenue was removed in favor of a skyscraper. Compensating for that requires driving a series of one-way streets. So I don’t feel that bad that we got it wrong here.

Deepening mystery on the route through Logansport

The book shows a very different route through Logansport than we assumed. We routed it entirely over what is now State Road 25 through town, crossing Biddle Island as it enters downtown. You can see SR 25 on the map snippet at right below.

But the book shows the road entering Logansport and veering north, probably along what is now Lymas Ave. and Cicott St., crossing the Wabash west of Biddle Island, and then running along the Eel River’s north bank and then out of town. I’ve marked in red on the Google map what I think this routing must have been.

But an 1836 map of Logansport shows the Michigan Road crossing both the Eel and the Wabash via Biddle Island, as we’ve routed the byway. You can see that map here. Given that the road was surveyed in 1832 — four years before this later map — I wonder whether the road ever ran as surveyed.

Mucking things up in Michigan City

Early descriptions of the Michigan Road we’ve found always say that it ends at the mouth of Trail Creek at Lake Michigan. The survey map bears that out!

Unfortunately for the byway, the road no longer goes all the way through to the lake. It stops about 1,000 feet before it crosses Trail Creek, at an intersection with US 12.

We routed the byway from there west along US 12, ending it where US 12 meets Willard Ave. I have a dim memory that this is where the early-20th-century Michigan Road auto trail ended. But I have no idea where that memory comes from. If I had it to do over, I’d end the Historic Michigan Road Byway at the intersection of Michigan Blvd. and US 12 in Michigan City.