Gold placers were worked in Los Angeles County between 1834 and 1838 by Mexican and Spanish miners, and by 1858 more than 6,000 miners were working placer deposits 35 miles northwest of the Los Angeles city hall. Most of the county’s total production of gold through 1959 was 1,109,200 ounces which came from lode deposits, but small yields of placer gold are garnered every year by amateur gold hunters from many places, especially from sand and gravel pits and from the streams of the San Gabriel Mountains above Azusa.
Mt. Gleason District & Cedar District
In the north central part of Los Angeles County, you will find Acton, it is located in the Cedar and Mt. Gleason district, the area had many area mines and prospect pits, notably the Governor Mine, which had a total production of at least 50,000 ounces of lode gold.
San Gabriel District
If you go north up San Gabriel Canyon, you will find Azusa, which is located in the San Gabriel district which had a total production, 1848-1957, of about 165,000 ounces of gold. In the San Gabriel range gravels, worked 1848-80 for estimated 120,000 ounces of placer gold and still productive of colors and nuggets to weekend panners and dredgers. There were also several area lode mines in area which contained gold quartz veins cutting igneous and metamorphic rocks. In the East Fork of the San Gabriel range, the old site of Eldoradoville which was a gold camp of early 1860s and favorite amateur gold hunting area today, in area watercourse and bench gravels you can find placer gold with some sizable nuggets.
Antelope Valley District
North along the Kern County line and south of Neenach, you will fin Lancaster, which is in the Antelope Valley district. Gold was discovered in 1934 in the Antelope Valley district. It had a total production through 1946 of 9,700 ounces. There are many area claims and prospects, and the River Mining Company Claims are the most productive for placer and lode gold.
In Placerita Canyon State Park near Newhall, it is the area of original productive placer operations, in present gravel deposits you can still find placer gold.
Northeast of San Fernando by 12 miles, in Pacoima Canyon, the headwater and area gravels and slopewash deposits contain placer gold. If you go 12 miles up the canyon from its mouth, you will find the Denver Mining and Milling Property which was a rich lode gold producer.
In Tujunga located in Tujunga Canyon, the area gravel deposits contain colors and small nuggets.