The crossroads is closed during the TT fortnight in May/June of each year during practice and racing hours and a similar situation occurs during the August Manx Grand Prix.
The station is a popular viewpoint to watch the world-famous T.T. motorbike races and the Manx Grand Prix races and as the tramway crosses the course, tramcars terminate on either side of the road during race periods, with cars being moved to the upper part of the line prior to road closure.
The railway line at this point runs parallel to the A1 Douglas to Peel road which is part of the Snaefell Mountain Course used for the Isle of Man TT and Manx Grand Prix Races.
Union Mills village is situated between the second and third milestones of the Snaefell Mountain Course road-racing circuit and is part of both the Isle of Man TT course used since 1911 and the Manx Grand Prix since 1923.
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Also, Cronk Urleigh became part of the Snaefell Mountain Course used since 1911 for the Isle of Man TT and from 1923 for the Manx Grand Prix Races.
The musician Jake Drake-Brockman, a former member with the Liverpool group Echo & the Bunnymen, was involved in a fatal road traffic accident at Orrisdale North on 1 September 2009 while visiting the Isle of Man for the Manx Grand Prix when the vintage BSA motor-cycle he was riding was in collision with a converted ambulance.
The musician Jake Drake-Brockman, a former member with the Liverpool group Echo & the Bunnymen, was involved in a fatal road traffic accident near Orrisdale North while visiting the Isle of Man for the Manx Grand Prix when the vintage BSA motorcycle he was riding was in collision with a converted ambulance.
A return visit by Ian Lougher for the 1984 Manx Grand Prix resulted in a broken-collar bone after a crash on the Mountain Mile while riding a 250cc Armstrong during the 1984 Junior Manx Grand Prix.