ᎯᎠ ᎤᏔᏂᏗ ᎦᏙᎯ ᏥᏄᏍᏛᎩ explored ᏥᏄᏍᏛᎩ ᎦᎳᏅᎯ C. Fremont ᎾᎿ ᎯᎸᏍᎩ ᎤᏤᎵ ᎥᎢᏒᎢ ᎭᏫᎾᏗᏢ ᎯᎠ 1840s. Fremont ᎪᏢᎯᏌᏅ ᎯᎠ cartographic ᎦᎵᏓᏍᏛ Miera, ᎠᏃᏢᏍᎬ ᎠᏍᏓᏯ ᏚᏙᎪᏛ Ꮎ ᎯᎠ ᎤᏪᏴ ᏄᏛᏁᎸ ᎾᏍᎩ ᏂᎨᏒᎾ ᎠᏟᏴᏍᏗ ᎯᎠ ᎡᏆ ᎠᎹ ᎥᏓᎵ. ᎭᏫᎾᏗᏢ 1869, ᎯᎠ ᎤᏪᏴ ᏥᏄᏍᏛᎩ surveyed ᎠᎴ mapped ᎾᎥᎢ ᎦᎳᏅᎯ Wesley Powell ᏥᏄᏍᏗ ᎢᎦᏛ ᎯᎠ ᎢᎬᏱ ᎤᏤᎵ ᏔᎵ ᎥᎢᏒᎢ ᎯᎠ ᎤᏔᏂᏗ ᎦᏙᎯ. ᎾᎯᏳᎨᏒ ᎤᏤᎵ ᏔᎵ ᎠᏌᎳᏙᏗ ᎭᏫᎾᏗᏢ 1869 ᎠᎴ 1871, ᎾᏍᎩ ᎠᏍᎦᏯ ᎠᎴ ᎤᏤᎵ ᎠᏂᏏᎦᏯ ᎤᏓᏁᎸ ᎤᎪᏗᏗ ᎯᎠ ᎠᎵᏱᎵᏒ ᎧᏃᎮᏗ ᏚᎾᏙᎥ ᎯᎠ canyons, geographic ᏄᏍᏛ ᏗᎨᎦᏃᏗ, ᎠᎴ ᎤᏪᏴ ᎨᎳᏛᏍᏗ ᎯᎠ ᎤᏪᏴ.