Soon after, the discovery of gold triggered the West Coast Gold Rush. Edward Dobson was commissioned to examine every possible pass to the West Coast from the watersheds of the Waimakariri, Taramakau and Hurunui Rivers. After finishing his examination, he declared that "Arthur's pass" was by far the most suitable to get to the gold fields. The provincial government decided that a road was to be built between Christchurch and Hokitika, a distance of , and Edward Dobson was put in charge of the project. The road was opened on 20 March 1866. The alpine pass became known as Arthur's Pass, with a nearby village and a later a national park also taking this name.