Glen Lyn is an unincorporated community in Giles County, Virginia, United States, at the confluence of the East and New rivers.

Over the years a post office was established giving Montreal a new name of Mouth of East River.

Railroad workers of the Norfolk and Western Railway later gave it the name Hell’s Gate.

[6] During the late 1800s, a few stores and a ferry were opened, however, the community did not experience any substantial growth until the construction of the Appalachian Power plant in 1919.

[6] Glen Lyn is located in northwestern Giles County at 37°22′23″N 80°51′39″W / 37.37306°N 80.86083°W / 37.37306; -80.86083 (37.373080, -80.860906),[7] on both sides of the New River.

U.S. Route 460 passes through the town, leading east (upstream along the New River) 3 miles (5 km) to Rich Creek and west 15 miles (24 km) to Princeton, West Virginia.

The climate in this area has mild differences between highs and lows, and there is adequate rainfall year-round.

The park was previously maintained by the Town of Glen Lyn prior to dissolution.

[5] The park includes areas for camping, fishing, a boat ramp, go-cart track and a playground.

[5] The United States Postal Service operates the Glen Lyn Post Office within the community.

Emergency medical services are provided by the Giles Lifesaving and Rescue Squad.