In Horse Valley in Yuba County about two miles north of Camptonville. So named because a man from Galena, Illinois, mined here in 1852. The place is mentioned in a letter of November 3, 1853, in connection with the surveying for the building of a ditch. Charles De Long mentions it frequently after 1854. The diggings paid well after the Sierra Water Company provided water in 1858. It was reported in 1861 as a well-paying hydraulic mining operation. A Galena Hill Mine is listed until 1896.

- Erwin G. Gudde, 1975

"Gold was found on this hill, about two miles north of Camptonville, in 1852. The discoverers were from Galena, Illinois, and named the hill after their Eastern home. The hills was very easy to work, and it is claimed that for this reason more money was made here than at any of the other hill diggings. In 1856, there were a hotel, two stores and two saloons, while about one hundred miners were at work. A large portion of the hill was worked by hydraulic power. At present there is no store or business place here, and only a dozen miners at work."

- Thompson & West, History of Yuba County, 1879