Location: Old US 40 and I-80, Humboldt Cty No signage as SR 789 begins. 789 actually begins near the I-80 west on-ramp, not directly at exit 194. Location: Old US 40 and Morrison Ave, Humboldt Cty Turn right to connect to I-80 at Exit 194. Location: Old US 40 and Morrison Ave, Golconda, Humboldt Cty … Continue reading Nevada State Route 789, I-80 to Midas Rd