Moray Firth the Moray Firth and Highland, Moray and Aberdeenshire to the south. The firth has more than 800 kilometres (about 500 miles) of coastline, much of which is cliff. A number of rivers flow into the Moray Firth, including the River Ness, the River Findhorn and the River Spey. Various smaller firths and bays are inlets of the firth, including the Cromarty Firth and the Dornoch Firth. The Pentland Firth has its eastern mouth at the Moray Firth's northern boundary. The Moray Firth is effectively two firths, the Inner Moray Firth , which was traditionally known as the Firth of Inverness,
Firth, Idaho 15.3% of those age 65 or over. 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