Virginia City, Nevada
Twain arrives in the West’s richest mining town:
"The 'city' of Virginia roosted royally midway up the steep side of Mount Davidson, seven thousand two hundred feet above the level of the sea, and in the clear Nevada atmosphere was visible from a distance of fifty miles! It claimed a population of fifteen thousand to eighteen thousand, and all day long half of this little army swarmed the streets like bees and the other half swarmed among the drifts and tunnels of the 'Comstock,' hundreds of feet down in the earth directly under those same streets."
—from Roughing It
Go see it: Virginia City