Hubby and I spent my spring break up in the Sierras last week. One of the spots we stopped to investigate was the Cottonwood charcoal kilns. These kilns were built in the 1800's to transport the charcoal to the nearby mines in the Owens Valley, since they had stripped the area of all trees. We have driven by them many, many times and never stopped to check them out! They are right off Highway 395, above Olancha, so if you get a chance, stop by and see them!