to twelve were seen to fall according to Hoffman's account. The Americans went back to base after this fight without establishing a post on the Colorado. On March 1, Lieutenant Samuel A. Bishop was sent from Los Angeles to deliver fresh supplies to Lieutenant Edward Beale who was working on his road in northern Arizona. With thirty-eight men on camels and several wagons and mules, the column was met at Cave Canyon in the Mohave Desert by employees of the Central Overland Mail company and soon after by 1,500 warriors. The Mohaves opened fire on the small troop of Americans but they reportedly missed their targets intentionally but later moved in closer for a deliberate attack. In the ensuing skirmish, two natives were wounded by musketry, one of whom died later on. Lieutenant Bishop decided it would be best to send the wagons back to the coast while he successfully proceeded to Beale's camp. Second Mohave Expedition Lieutenant Colonel Hoffman used the battle at Beaver Lake as justification to ask the War Department for more troops. So in April 1859, another expedition was sent to the Colorado which included over 600 infantry, cavalry and artillery. After establishing Camp Gaston as an advance base, Hoffman's second expedition reached Beale's Crossing and Camp Colorado was officially established on April 19 and nine days later it was renamed Fort Mohave by Captain Lewis Addison Armistead. On April 23, Lieutenant Colonel Hoffman arrived at the Mohave Villages and discussed peace with the inhabitants. Hoffman told the chiefs that if they would agree to not attack immigrants traveling through their land and not oppose the government's building of roads and forts in Mohave territory, then they would not be destroyed. Reluctantly the Mohave agreed and Chief Cairook surrendered himself and was taken down the Colorado to Fort Yuma with eight others. Hoffman then went to San Bernardino and left Captain Armistead of the 6th Infantry in charge of Fort Mohave with fifty men and a few artillery pieces. Meanwhile, troops and two river steamers were waiting at Fort Yuma to reinforce Fort Mohave if necessary. Escape from Fort Yuma After several weeks of a long hot summer in a cell, Chief Cairook and the eight others plotted their escape. Every day the prisoners were allowed to leave the cell for fresh air; and it was during one of these recesses in late June that the