Historic Sites At the Reliance Mica Mine Site, you can view the tunnel where they extracted mica. The mica was taken down the mountainside using mules. Here are some historic sites with the accompanying trail needed to access them. For more historic sites (including more mill sites), please see the Valemount Museum’s “Historic Hikes and Places in the Robson Valley,” available for purchase for $5. Click on a header item to re-order list [table “” not found /]