The B8074 is another of the remote and picturesque classified routes in the West Highlands, passing through Glen Orchy.
We start just south of Bridge of Orchy on the A82, and head south-westwards through the Glen to the A85 east of Dalmally. It is a shorter route between the two than passing through Tyndrum, but almost certainly slower as the road is entirely single-track with passing places, and twists, turns, and undulates almost at will. However, along the way there are some spectacular falls on the River Orchy to view and a wonderful sense of peace and quiet to enjoy.
The B8074 was not classified in the original list of 1922. Indeed, there were no four-digit B roads in Zone 8 in the original list. Looking at old maps, there was a road through Glen Orchy, which at the Bridge of Orchy end roughly followed the river from the Drochaid Chonoghlais into the village, with a rough track still visible. However it seems probable that it was not until the new A82 was built that the road was re-aligned to meet the new road on its current route, and so gained the B8074 number. This would have been before 1932, as it appears on that year's edition of the Ten-Mile Road Map of Great Britain.