Mackay Idaho is located West of Idaho Falls off of US highway 93 in Custer County. The town is pronounced “Mackie” with the accent on the first syllable. Elevation is about 5,900 ft above mean seal level (MSL).
Mackay is a wonderful site for off-road riding, with both jeep, UTV and ATV width trials. The trail system interconnects for miles. You can see more at https://trails.idaho.gov/