On the site on forested Gold Creek where gold was first discovered in Juneau, the museum preserves old mining buildings and some of their original equipment, including an immense 1912 air compressor and a layered glass map of the tunnels. The highlight is its energetic and learned guide, Renee Hughes, who lives above the compressor with her husband, Gary Gillette. Both are leaders of the Gastineau Channel Historical Society. Ask Renee about the cave-in of the Treadwell Mine to hear her riveting storytelling. The entrance to the site -- which contains relics and buildings spread over several acres -- is a bridge across the creek, which leads to a steep trail up to the buildings.