I recently rode the Prairie Trail as part of a ride from Geneva, IL to Lake Geneva, WI. It is a beautiful trail and definitely rideable on a road bike if the path is dry (I had 28mm tires). It’s crushed limestone for ~8 miles from Ringwood, IL to Genoa City, WI — exactly like the Illinois Prairie Path or Great Western Trail. Like the description says- only the northernmost 1/4 mile between the Hebron Trail and Genoa City is chunkier gravel.

Thanks everyone for your previous reviews!

Initially, the Hank Aaron Trail ran slightly downhill through older neighborhoods on the outskirts of town, past single family post-war homes visible through the trees. It was a tree-lined, single car-lane sized concrete trail, meaning there was room for two bikes across, but not three. We were warned by another biker not to miss a sharp left turn ahead, which we found (following him) as we neared the very cool American Family Insurance Stadium.
Continuing towards the waterfront, the trail became a wide sidewalk alongside a fairly quiet industrial avenue lined with unused railroad boxcars. Beyond them was an active railroad yard and tracks that we crossed as the Milwaukee skyline came into view. Nearing downtown and the beginning of several waterways where small pleasure boats were moored, we passed the Harley Davidson Museum.
Signage got very spotty as the route became more complicated and we had to refer to TrailLink a couple of times after we crossed over the downtown river. We ended up riding on the city streets and sidewalks of the Historic Third Ward area. At that point, we abandoned trying to follow the trail (it ended somewhere nearby) and headed toward a descending drawbridge over a canal lined with sailboats.
While a large network of walking/biking paths crisscrossed the entire area, we rode close to the rocky revetments and corrugated iron seawalls that kept the Lake at bay. There appeared to be lots to see and do on the Lakefront: we passed an outdoor amphitheater, a small red lighthouse, other performing venues, a building designed to look like a large ship’s prow (Milwaukee Art Museum), Discovery World science and technology center, and more. The promenade eventually ended on a long, wide jetty, beyond which was McKinley Marina.
We found good beer and award-winning fried cheese curds at a brewery/restaurant north of downtown.

Many busy four lane streets to cross without traffic lights. Sidewalks end without warning. Steep hills you have to walk your bike up. Pretty little picturesque town but not bike friendly.

We began our adventure, August 31, 2021, at Whispering Oaks Park in McHenry, IL and set off going north. Almost immediately we crossed busy W. Elm St./Rte 120, but quickly left traffic behind as we passed McCullom Lake and East Beach Park and began passing farm fields and then the Glacial Park Conservation Area, full of beautifully blooming late summer prairie plants. Continuing north we passed through the small town of Ringwood and then into Richmond, IL where we negotiated another busy road crossing at Kenosha St/Rte 173 and then on into the North Branch Conservation Area where the Hebron Trail connects to the Prairie Trail, and just shy of the Wisconsin state line. The North Branch Conservation Area is a lovely, restored prairie area with rolling hills and a destination in it's own right. Storm clouds began to gather, and we turned around and headed back south. We stopped for some light refreshment at the Rusty Nail Saloon's outdoor patio, right on the trail, and also noted a good spot for ice cream, milk shakes, etc. just across a large parking lot to the west of the Saloon. This trail has a lovely mix of town and country and this section of the trail was easy riding with good path conditions and minimal road crossings to negotiate. We are hoping to get back again in Summer 2022.

We have now walked from North Ave north to Rt 60. We are still heading to the northern end. We have to walk double — out and back but it’s been a great COVID distraction. Some bad parts from wheeling north to lake cook rd. Then trails thru Mt Prospect, Des Plaines and park ridge really nice. Gets a bit wonky again around Catherine woods south. For walking fine but bikes harder to get under some of the bridges. Also kids hanging out under a few too. Beautiful trail. Not very crowded but Lake county does amazing job.

You can make about a 5 mile loop out of the trail by using some of the connected trails. Takes you through some wooded areas and has some smooth gravel areas as well. I liked that it had some small hills to make it a bit more challenging.

Very short trail, it does connect to the big bend muskego trail

We started this trail out at merton firemans park, and went east to the falls, trail is all paved, beautiful scenery, goes under 164, nice woods, great view of the quarry, great ride

Was very excited to try this trail between Fish Hatchery (Delafield) and Oconomowoc downtown....but was disappointed. So much of the trail is between power line poles and fairly uninteresting. The worst, however, was the stretch around Nemahbin Lake--where the trail literally disappears completely and you are left navigating a narrow, heavily travelled road with no shoulders in some places! I can't believe this portion is still called the Lake Country trail--when there is no trail. I would not recommend this route for families with young children, given this dangerous stretch with cars whizzing past.

...loved the concept of this path and the ability to enjoy downtown Delafield and downtown Oconomowoc, though. I just wish is was better developed and a bit more interesting/rustic.