Firth locally the change is held to be at the Tail of the Bank where the river crosses a sandbar off Greenock at the junction to the Gare Loch, or even further west at Gourock point. However, some firths are exceptions. The Cromarty Firth on the east coast of Scotland, for example, resembles a large loch with only a relatively small outlet to the sea and the Solway Firth and the Moray Firth are more like extremely large bays. The Pentland Firth is a strait rather than a bay or an inlet. These are connected to, or form part of, the
Firth, Idaho Firth, Idaho Firth is a city in Bingham County, Idaho, United States. The population was 477 at the 2010 census. Firth is located at (43.305519, -112.183938). According to the United States Census Bureau, the city has a total area of , all of it land. Firth is located on the eastern side of the Snake River, facing the Blackfoot Mountains. Firth began as a Swedish settlement in 1885. It was named for Lorenzo J. Firth, an English emigrant, who gave land for the railroad section house and water tank; the railroad named the station for him in 1903. The post