I think the Kinnickinnic River Trail is a good riding trail. You can see lots of nature on the lower portion of the trail (south of Lincoln Ave). The upper portion runs along the railroad tracks which is separated by a chain link fence for safety reasons. Amtrak rolls by about every few hours. The day I rode it (Sunday afternoon in early Oct), the trail wasn't very busy. Probably due to Sunday afternoon football games.

The only bad part of the trail is that you have to ride the road for 0.7 miles to get to the lower portion. The good part about the road is that it isn't very busy and it does have bike lanes.

It’s right in our backyard and we have been on every portion with e bikes. LOVE it all. See wildlife every time. Also hike in winter months

This trail is so bumpy I would not classify it as a bike trail.

Explored this trail, and it’s really good with lot of forest area and greenery. The paved road through the entire ride is a big plus for the trail. And the loop is a plus as well. We don’t feel like going straight and getting back.

Beautiful trail between Lake Mills and Deerfield. Ice cream in Deerfield! No ruts - hard packed crushed limestone. I rode my road bike with out problem. Just wish they had ice

We started at the Congress St Trailhead in Burlington and rode north to where the trail crosses Heg Park Rd. and turned around (needed to get back by lunchtime). The trail is primarily dirt, which was fine for our gravel tandem. While the trail crosses RT-36 (no signals, just a painted crosswalk), the traffic was light enough for us to get by. The median is wide enough to safely stop in if traffic is busy. The turn from the parking area at Saller Woods is a bit sandy and can lead to wipe-outs. It really needs to be wider and less sharply curved. The section of the trail from N Browns Lake Dr through Case Eagle Park out to Buck Rd (in Waterford) is paved and is a delight to ride on. North of Beck Dr (RT-20) it's back to dirt. Overall a nice ride for the morning.

I rode the entire trail. It was well maintained, labeled and fun to ride. At Capitol drive you can still see remnants of when it used to be a railroad yard to store the rollingstock for the beer industry. There is a lot of really nice art work along the trail and best of all, you can end the ride at Lakefront Brewery for a cold beer!!

My only gripe is that there are a couple of spots in which you have to ride the road for a block or two because companies have purchased the rights along the original railroad corridor.

I'm really looking forward to the expansion going north.

I started at the trail head in Cottage Grove. Paid my $5 and took off east. The path is mostly crushed lime stone and nice riding. It has slight grades but no hills. The trail is mostly straight and flat which is why I say it lacks features. Yes I know it is a converted train tracks. Lots of farms and fields with flowers. (features?) Also tree lined. It goes by many small towns along the way but they looked deserted. Didn't see many people.
I think riding the IPP and Fox River trail is better.

I was looking for parking on Dundee rd to get into this trail, then realized I had to park in the Deer Grove trail and then cross Dundee and get into the trail. It’s was really nice and smooth ride until Hicks rd. After that there were multiple minor stops. But overall it was good to ride this trail. Really liked the atmosphere and the clean and well maintained path. Overall good experience!!!