The River Tromie is a right bank tributary of the River Spey

River Spey

The River Spey is a river in the northeast of Scotland, the second longest and the fastest-flowing river in Scotland...

 in northeast Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

. It emerges from the northern end of Loch an t-Seilich within the Gaick Forest

Deer forest

The deer forest is an institution and phenomenon peculiar to the Highlands of Scotland. It denotes a sporting estate which is kept and managed largely or solely for the purposes of maintaining a resident population of red deer for sporting purposes.Typically, deer forests are in hilly and...

 and flows northwards, then northwestwards down through Glen Tromie to Bhran Cottage where it turns to the northnortheast. It is bridged by the B970 road at Tromie Bridge near Drumguish and flows a further 1.25 miles (2 km) northwest to meet the Spey near Lynchat

Lynchat

Lynchat is a small village, situated 2 miles northeast of Kingussie in Inverness-shire, Scottish Highlands and is in the Scottish council area of Highland....

.

Loch an t-Seilich is fed by the Allt Loch an Duin which arises at Loch an Duin and passes through Loch Bhrodainn on its way north to Loch an t-Seilich, being joined on its right by the Allt Gharbh Ghaig before it does so.

Etymology

The name 'Tromie' is an anglicisation of the Gaelic

Scottish Gaelic language

Scottish Gaelic is a Celtic language native to Scotland. A member of the Goidelic branch of the Celtic languages, Scottish Gaelic, like Modern Irish and Manx, developed out of Middle Irish, and thus descends ultimately from Primitive Irish....

word for 'elder tree'.