It's on the way out, I'm sure. I think Town of Blooming Grove is, too.
Here's the history.
When the land comprising Wisconsin was first surveyed way back in pre-pioneer times, the survey divided everything into one mile squares. Well, not exactly one mile, since the top east-west line tends to get shorter as you approach the north pole, right? But you get the idea. Each of these square mile is called a section.
If you drive around our rural areas, you often find the oldest roads form a checkerboard at one-mile intervals, or half miles, or quarter miles. That's a direct result of building the rural roads on the section lines, which became boundary lines lines between farms. (Traditionally I think the right of way was 33' though I'm not going to check right now.)
Aside: a section is 640 acres (though it need not be square). Divide the section square into a few smaller squares -- take pencil and paper and try -- and you'll end up with even littler squares of 40 acres apiece. Hence the common agricultural "back forty."
Another aside: all this makes it awkward to switch our land measurements to the metric system.
Here's a map that might help:http://www.countyofdane.com/about/map.aspx
Each square of six one-mile squares on a side (that's a 36-square supersquare, if you follow) was legally designated as a township prior to the time the land was sold to settlers by the state. You can see all Dane County's old townships on the map, though because of bodies of water not all were perfectly square. (This system is unusual among the old prairie states -- most skip the township level.) The township is basically unincorporated but was meant to be the default subdivision of local government where there were no towns. Villages and cities -- Sun Prairie, say -- grew up in various places and carved their land area out of the townships.
Another aside: Each township, right from the beginning, set aside an acre of land at intervals to be publicly owned. Those were for the rural one-room schools, with the idea being a school was within walking distance of every farm. You can see the value the earliest settlers and the founders of the state placed on public education. Some of the school buildings still exist -- there's one at Nora Store on Hy 12 east of Madison, for example. Most are houses now, if they've survived.
Sub-aside: The term "consolidated school district" refers to the time bigger town schools took in the rural school kids and gradually closed the rural schools. This is within my memory -- growing up, I remember the littlest kids in my own class attended rural schools until grade 6 and after that took busses in to attend public middle school (then junior-high) and high schools.
The old WI townships still have their own little governments, even today, and in rural areas they are very much alive, having a variety of responsibilities and powers like land usage and fixing/plowing the town roads.
As the villages -- and as the City of Madison -- got bigger, they started to eat the townships. That's why, today, Town of Blooming Grove is nothing but a few scattered scraps of land that no longer even touch. Town of Madison is another similar remnant, having been mostly eaten by City of Madison as the city grew and annexed land. Fitchburg got aggressive a few decades ago and incorporated its land area as a separate city (a leap from township) for self-protection. The City of Madison can't pre-emptively eat another city the way it did the old townships.
Here ends today's history lesson, though it's a fine sunny day to go out in the country and find some of the places the north-south section lines make a double jog to accommodate their approach to the North Pole. There's a nice one on the rural route to Lodi, I think, and maybe another west of Stoughton?