Thanks! It's an art installation in the ghost town of Rhyolite, just outside of Death Valley. Check it out if you're ever out that way.
My first attempt at lith printing - took about 6 sheets of paper to get what I wanted. Lith printing is very interesting because you're never quite sure what you're going to get, and it's near impossible to duplicate the same print.
Damn ! I was in Death Valley a little more than a month ago ! But no spare time on our trip for going norther than Furnace Creek this time. Have to come back, for sure.
About Lith, I tried once, and was rather pleased by first results, even they are far from perfect.
But it was loooong ! I must try again... Too much things to try and practice ! I need something like Harry Potter's Time-turner device for lab experiments