Wooded, shady, well maintained densely packed fine gravel. Only noted one place for snacks, so bring sufficient water & snacks. Clean rest stops along the way.

95 degrees on the way to the trail, 75 degrees on the trail. Shaded 95%. Beautiful scenery Nice path Very low grade Plenty of deer If you stop the mosquitoes will carry you away so use your Skin So Soft from Avon Works great Smell great

My favorite bike trail! So clean and scenic!

My wife and I took the trail from Vienna IL. to Harrisburg IL. for our 29th anniversary, Uh lala how romantic (he says with a wink). 34 miles one way. We packed overnight cloths and stayed in an Airbnb, "The Apartment at 217" in Harrisburg. Loved the apartment and our hosts. Stopped in Stonefort on the way up and ate lunch at "Bucketheads", a must stop. Nice staff and good Cajun food. We've ridden from Karnack to Vienna before so we have completed the whole trail. The ride from Vienna to Tunnel hill is the prettiest part. 9.3 miles from Vienna to the Tunnel. When you get to the tunnel you can feel the cool air and it feels great on a hot day.

Trail was in great condition with packed fine rock. Thought maybe all the rain in spring of 2019 would cause washouts, but surface is in great condition.
Trail south of Vienna is flat and little traveled, I just met one couple in 12 miles. Need insect repellent south of Vienna as the area is swampy.
Trail north of Vienna is uphill all the way to the tunnel, then downhill to the north. There is a little store open at New Burnside just south of the tunnel.

Took the family of five (3 kids ages 6-12) and had a great experience! We took lots of photos along the way, even stopped for ice cream in Sandburn crossing.

My husband and I just stayed at South Marcum campgrounds. We rode the bike trails there, at North and South Sandusky and also Wayne Fitzgerald State Park. We enjoyed it very much and will camp again just to bike there. Most of the trail is paved. We saw deer and baby fawns, turkeys, and even a groundhog.

My husband and I started at the Tunnel Hill Trailhead and rode south 25 miles to the Wetland Center and then back. It was a beautiful ride. We were impressed how well it was maintained. A fallen tree that we had to climb over on the way out was already cut and pulled off the trail on our way back.

At least one snake, five deer, several hawks and what I thought was a very challenging ride since I rarely do 46 miles. The washboard effect could be noticed from Karnak to the wetland center head to the center.

My sons and I still loved the challenge.