Captain Bayley's Heir: A Tale of the Gold Fields of California - G. A. Henty

When young Frank is falsely accused of a crime, he leaves England to seek adventure in America. He joins a wagon train heading west to the California gold fields, but as he is soon to find out, the West is more than just adventure! Braving Indians, wolves, and other dangers, Frank is determined to strike it rich - and perhaps someday clear his name and return home. - Summary by Rachel