It is part of the Salpausselkä ridge system, with its peak at an elevation of c. 140 metres (460 ft).

[4] The hill gets its present name from the Lahti longwave transmitter station established there in 1927–1928, and operated by the country's public broadcaster, Yle, until its decommissioning in 1993.

[6] As a highly visible reminder of the radio station, the twin radio masts remain, standing 150 metres (490 ft) high[3][7] and 316 metres (1,037 ft) apart,[8] forming a well-known landmark of Lahti.

[5] The hilltop milieu surrounding the earlier radio station has been designated by the Finnish Heritage Agency as a nationally important built cultural environment (Valtakunnallisesti merkittävä rakennettu kulttuuriympäristö).

[9] The city's oldest track and field venue (converted in winter to an open-air ice rink), opened in 1922, is also located on the hill by the foot of the radio masts.