Black Diamond rocks and coal
Fun interactive information about our geology, rocks and coal at the Black Diamond Museum
Free
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About The Chamber
The Greater Maple Valley-Black Diamond Chamber of Commerce provides community leadership, advocates for business, advances economic vitality that enhances the general welfare of the area, and promotes our communities as great places to live, work, and play.
Address
23745 225th Way SE, Suite 205
Maple Valley, WA 98038
Phone: (425) 432-0222
Email: ceo@maplevalleychamber.org
Hours: M-F 8am – 4pm