We tied our horses among the redwoods at the pool. From a cache behind a hollow rotting log my companion brought out a variety of things,—a fifty-pound sack of flour, tinned foods of all sorts, cooking utensils, blankets, a canvas tarpaulin, books and writing material, a great bundle of letters, a five-gallon can of kerosene, an oil stove, and, last and most important, a large coil of stout rope. So large was the supply of things that a number of trips would be necessary to carry them to the refuge.
But the refuge was very near. Taking the rope and leading the way, I passed through a glade of tangled vines and bushes that ran between two wooded knolls. The glade ended abruptly at the steep bank of a stream. It was a little stream, rising from springs, and the hottest summer never dried it up. On every hand were tall wooded knolls, a group of them, with all the seeming of having been flung there from some careless Titan’s hand. There was no bed-rock in them. They rose from their bases hundreds of feet, and they were composed of red volcanic earth, the famous wine-soil of Sonoma. Through these the tiny stream had cut its deep and precipitous channel.
It was quite a scramble down to the stream bed, and, once on the bed, we went down stream perhaps for a hundred feet. And then we came to the great hole. There was no warning of the existence of the hole, nor was it a hole in the common sense of the word. One crawled through tight-locked briers and branches, and found oneself on the very edge, peering out and down through a green screen. A couple of hundred feet in length and width, it was half of that in depth. Possibly because of some fault that had occurred when the knolls were flung together, and certainly helped by freakish erosion, the hole had been scooped out in the course of centuries by the wash of water. Nowhere did the raw earth appear. All