- With over 400 members spanning over 1000 square miles, the Calaveras County Chamber of Commerce provides information and support to the Calaveras business community. Through its programs and sponsorships, the Chamber works to benefit its members and strengthen the social and economic framework of our community.calaveras.org
- Amador County, California - Amador County Chamber of Commerce- Amador County Visitors Bureau ...www.amadorcountychamber.com
- Mariposa Chamber of Commerce, Mariposa area visitors, business information and other important resources for Mariposa, California.www.mariposa.org