The mission of the Black Diamond Historical Society shall be the discovery, preservation, and dissemination of the history of Black Diamond and environs, as it relates to King County and the State of Washington. NEW HOURS: The Black Diamond Museum is open every Thursday, 9 AM – 3 PM, and Saturdays and Sundays from 11 AM to 3 PM.
- Steve Israel, President
- 32627 Railroad Avenue, Black Diamond WA 98010
- Mailing address Box 1, Black Diamond WA 98010
- 360-886-2142
- Email: museum@blackdiamondmuseum.org
- Website: www.blackdiamondmuseum.org
- Facebook: Black Diamond Museum