Rock Run Township is located in Stephenson County, Illinois.

[2] The villages of Rock City and Davis are located in the township.

[3] Carnefix Mill, a three–story stone grist mill was built at Irish Grove 4 miles (6.4 km) south of Davis on Rock Run creek by George Raymer in the 1850s.

[5] Epplyanna Mill (Section 15) a three–story stone grist mill was built on Rock Run north of Rock City by James Epley in 1854.

This Stephenson County, Illinois location article is a stub.