In searching for ledges the prospector spends his time in the smaller gulches and upon the mountain sides. Every piece of detached quartz that meets his eye is examined, and if any specks of gold appear, the search is directed toward the vein or ledge from which the specimen came. With the hammer, pieces of quartz are broken from the veins which here and there rise above the surface of loose and crumbling rock. When the worker finds a piece that is stained with iron and has the appearance of carrying gold, he places it in his bag and keeps it for further examination. At camp, the pieces of quartz are pounded to a powder in a mortar and then washed in a horn spoon. A string of fine grains of gold tells of the discovery of a rich vein. [Illustration: FIG. 97.--A PROSPECTOR'S CABIN IN THE ROCKY MOUNTAINS] It is not usually an easy matter to find home of a piece of stray quartz upon the mountain side. Days and weeks may pass while search is made up the slope, for the fragment must have come from some point above. But the ledge, once discovered, is traced along the surface for the purpose of determining its direction and extent. When a promising bed of gravel or a vein of gold-bearing quartz is found, the prospector posts the proper notices of his right to the claim and has them recorded at the nearest land office. Then he makes a permanent camp by cutting down trees and building a cabin. The interior of the cabin is very simple. Its table and chairs are made of split lumber. One end of the single room is occupied by the bunk, and the other by a large fireplace. There may be no windows, and the roof may be made of earth piled upon logs, or of long split shingles commonly known as shakes. Sometimes, after discovering a very rich quartz ledge, the prospector goes back to a settlement to attempt to interest some one in buying or developing it. Sometimes it happens that he loses the location of the vein and cannot go back to the place where it was discovered. In this way his discovery becomes a "lost mine," and grows in importance in people's minds as the story of its riches spreads from one to another. Although men may spend years looking for such mines, they are not often found again. Frequently two men go prospecting together so that their work will be less dangerous and lonely. If they are not at once successful, they manage in some way to get supplies for a trip each year into the mountains. Often they are "grub-staked," that is, some man who has money furnishes their supplies in return for a share in their findings. If they have enough to eat, the prospectors, in their snug cabin, are comfortable and happy. The cabin is built as near as possible to the mine, so that the men need not be cut off from their work during the stormy weather. The temperature underground is about the same in both winter and summer, so that winter storms and summer heat form no hindrance to the work. [Illustration: FIG. 98.--MOUTH OF A TUNNEL]