Essex is an unincorporated community and census-designated place in Flathead County, Montana, United States. Located in the northwestern part of the state, Essex lies along the Hi-Line railroad line, near Glacier National Park, 31 miles (50 km) southwest of East Glacier and 26 miles (42 km) southeast of West Glacier. Amtrak's Empire Builder makes a flag stop at Essex station, westbound at 7:41 pm and eastbound at 8:55 am. The Izaak Walton Inn hotel is close to the Amtrak station platform. Essex also is home to a small BNSF Railway yard. Historically, it was used to provide coal and water for steam trains, and to station helper units used to push freight trains over Marias Pass. It is still used to base snow-clearing crews in wintertime.