The River Spey is a premier salmon fishing destination in the northeast of Scotland, renowned for its fast-flowing waters and significant role in Scottish angling tradition. As the second longest river in Scotland, it flows approximately 100 miles from its source in the Monadhliath Mountains near Loch Spey to its mouth at Spey Bay on the Moray Firth. The river's character changes dramatically along its course: the upper and lower reaches are steep and fast-flowing, while the middle section through Strathspey is a wide, alluvial plain where the river slows and meanders. This diverse habitat, relatively free from pollution and major obstructions, supports a major spawning population of Atlantic salmon, making the Spey one of Scotland's "big four" salmon rivers and a world-class fishery.