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Clockwise direction - like most folk on the day did, we met one person going the other way.
Straightforward walk, follow the paths/rusted fence posts.
The walk starts across the road and to the left of the phonebox - looking down Glen Lyon. The parking is on the same side of the phonebox, a wee farm road with a carpark about 30 feet of the main road - suitable for around 12 cars only.
It is a great circular walk, took us 8hrs 15 mins. Views over to An Stuc in particular are superb!.
An Stuc:

Carn Gorm Summit (1029m) - trig point has seen better days:

Meal Garb Summit (968m) - unusual formation of old iron fence posts:

Carn Mairg Summit (1041m):

Lookback at the rocky summit of Carn Mairg from Creag Mhor:

Creag Mhor summit (981m) -Schiehallion behind:

View down beautiful Glen Lyon:

Youtube Video: