Gillis Hill is a ridge located in Placer County, California. It appears on the Colfax USGS 7.5-minute topographic quadrangle. The nearest populated place is Illinoistown (historical), approximately 1.8 miles to the WNW.
Placer County · California
Gillis Hill is a ridge located in Placer County, California. It appears on the Colfax USGS 7.5-minute topographic quadrangle. The nearest populated place is Illinoistown (historical), approximately 1.8 miles to the WNW.