This plaque is located in the Goldwell Open Air Museum which is at the entrance to the linear Rhyolite site and is part of a global work called Kcymaerxthaere.
"Linear" is one of the terms the Geographer-at-Large of Kcymaerxthaere uses to refer to our world–to distinguish it from the parallel world of the story being told on this and other markers. The story here is centered around rhyoleir the lighter-than-air mineral mined in the area–even being used to float the corridors and art above the ground in the museum of Porfire Golden.
There were those who believed the treasure of this gwome was its land, light, and the extraordinary nature – not the economic value – of rhyoleir itself, mined nowhere else. Where the marker is placed was Geldwll, or "District of Shadows" in the Cognate tongue, after the miners of many faiths who prayed and created here out of sight of the greedy. As Rhyolite grew, this became the spiritual and cultural heart of the community, with several legendary museums.
One of the images above shows the general landscape of the area (the image is taken from one of the Kcymaerxthaere Museum of the Bench trading cards).
Created by Geographer-at-Large Eames Demetrios, Kcymaerxthaere is a "parallel universe that intersects with much of our linear Earth, but with different stories, creatures, peoples, even laws of physics and qualities of existence." It has been likened to a novel with every page in a different place. What makes the Kcymaerxthaere project particularly interesting is that Demetrios installs informative markers and historical sites at the locations in our world that connect to his world, creating real world intersections with his imagined universe. For the months of August and September, 2014, Demetrios is acting as our Geographer-in-Residence and his Kcymaerxthaere locations will be featured all over the Atlas. To learn more see our introductory article here!