Located 12 miles south of Clayton, off Rt. 24, or six miles north of Rt. 104, on County Hwy 2873 E. From Chicago take Interstate 55 south to Springfield then head west on US 72 to Griggsville.. Exit to Rt 107 north to Rt104 intersection. Go Left (west) on 104 til you see the Siloam Springs sign. Turn right for 6 miles. We sit approximately 30 miles east of the Mississippi and 30 miles west of the Illinois river
This is a really pretty park with a lot of history (go find the old mineral spring). We enjoy camping in the pines. Lots of shade. There are plenty of restrooms throughout the whole park. My only complaint is that they turned the store into a cabin. I really wish that they still had a store/lodge.
There are a few decent hiking trails, two campgrounds, and a 58 acre lake with decent fishing. However, there isn't much else to the park. They could have done a much better job with more hiking trails and better parking. There are basically no informational signs available. The park is tranquil though. The park has free entrance.
Also, beware of the quicksand by the old Bridge. It is a scary deal as we had a member in our party who was over knee deep and had to be saved. We were lucky there were tree branches around we could through to the person otherwise it would have been a dire rescue situation.
I've always considered Siloam to be my "home" park. It's one of the most beautiful, peaceful, states parks around.