Quartzburg (earlier, Burns' Creek, Burns' Camp, Burns' Ranch, and Burns' Diggings) is a former settlement in Mariposa County, California. It was located on Burns Creek 2 miles (3.2 km) upstream from Hornitos.
John and Robert Burns settled at the site in 1847. A mining camp grew up. A post office operated at Quartzburg from 1851 to 1861. The name "Quartzburg" was bestowed by Thomas Thorn due to the quartz outcroppings at the place.
References
Quartzburg, Mariposa County, California Wikipedia(Text) CC BY-SA