Peter Grubb bought an already operating 30'X 60' 1.5 story log grist mill and acreage from Jacob Graybill in 1784. He built Mount Hope Furnace also near the head of Chickies Creek, on Shearer's Creek. Peter's son, Henry Bates Grubb, got control of part of Mount Hope from Peter in 1786 and bought his brother out 7 years later.

H. Bates Grubb built the second 60'X 70' 2.5 story stone mill in 1804. Two sons, Edward B. Grubb & Clement B. Grubb, inherited the mill from H. Bates Grubb in 1822, and Clement sold his portion Of Mount Hope Estate to A. Bates Grubb in 1845. The two Grubbs owned the furnace and mill upto and possibly after 1875.

The owner was Miss D.E.B. Grubb in 1899. Five years later the mill burned and was rebuilt as a barn, using a smaller footprint and incorporating some frame material where the sructural stone had been compromised.

The mill was still being used for a barn in 1969, 1995, and 2004. The same Grubbs owned the Mount Vernon Grist Mill and Furnace NW of Elizabethtown, Pa on the Conewago Creek during this same time period. A distance of about 20 miles separates the two mills(one in ruins) today. The distance in the mid 1800's was probably further on the roads of that time.

The Mount Hope Furnace ruins and grist mill are on private property, and permission should be sought to see and photograph these. The Furnace Mansion has been transformed into Mount Hope Winery. An annual renasance fair is held every fall here as are periodic concerts held on the gtrounds.