The Evans-Mumbower Mill in Upper Gwynedd held an open house Sunday afternoon. The mill, along the Wissahickon Creek on Swedesford Road, closed in 1929. The exterior of the mill was restored, and volunteers are busy slowly restoring the inner workings of the mill, including the giant wooden water wheel. The work is not yet complete, but much of the four-story machinery is in place. The mill should be operational sometime next year, ready for demonstrations of early industrial power.

One of the artifacts dug from the grounds around the mill.