Rock Top SFR 233

Total Miles


251.46 ft


0.5 Hours

Technical Rating



Best Time

Summer, Spring, Fall

Trail Overview

The Rock Top SFR 233 is a forestry road on top of Silica Hill within Shawnee National Forest. The Rock Top is just that, natural rock pops out on top of the hill where the trail meets with the Silica Hill Road SFR 645. The trail features steep off-camber grades some being strictly on dirt and some being graveled, yet ruts are pretty standard for every incline on the 233. There is also an auxiliary northern lane to take up to the highest point, forming a little loop. The views from the top of the ridge are very scenic and worth the drive to the top alone. Rain and wet conditions increase the difficulty.


The 233 can be taken at a surface level of 4/10 or brought up to a 6/10 if you choose to do the auxiliary loop. it has a 3 foot muddy wall to climb at the base road, this must be done to complete the loop. The rest is rutted muddy inclines on turns some being off camber and tight width.

Technical Rating


Access Description

From Mill Creek, IL head north on IL-127 for .7 miles, turn left onto Lingle Creek Road, in 1.3 miles stay right to stay on Lingle Creek Road, in 1.7 miles, turn left onto Silica Hill Road, continue west bound uphill, stay right in .2 mile to stay on Silica Hill Road. Continue for another 1.1 miles and you will run straight into the Rock Top SFR 233, at 37.37372, -89.32068.