At the foot of Mount Shasta they passed over a logging camp nestled in the thick forest. Ahead of them stretched the floor of Shasta Valley, but they could not see the far end as it was covered with clouds. For the next fifty miles Bill wondered what he would do when he reached those clouds. He knew that the valley ended at the range of mountains along which the Oregon-California boundary extended. He could not cross those mountains unless he could get at least four or five thousand feet altitude.