Csóványos observation tower, Observation tower in Perőcsény, Hungary

The Csóványos observation tower stands on the 938-metre summit of Csóványos in the Börzsöny. The 22.6-metre concrete geodetic tower of 1978 was wrapped in 2013–2014 with a steel structure clad in larch, walkable on every level, and fitted inside with a 133-step spiral staircase. It was opened on 9 October 2014.

Csóványos served as a triangulation point during the second military survey, and hikers climbed the wooden pyramids built there from the start. A 1941 photo shows a 12–15 m wooden tower, rebuilt in 1958 to 22–24 m. Because the wood aged, a 22.6 m concrete geodetic tower was erected in 1978; it was later closed by the county land office. In autumn 2013 Ipoly Erdő Zrt. began converting it into a lookout with EU support at a cost of 85 million forints, and it opened on 9 October 2014.

The tower's name comes from the Csóványos peak, a triangulation point since the second military survey. Hikers climbed the wooden survey pyramids from the start, and a 1941 photo shows a 12–15 m wooden tower. The concrete tower, open for years, was closed by the county land office before its 2014 reopening.

The tower is accessible via marked hiking trails from several directions, with routes suitable for most fitness levels. It is wise to check weather conditions before visiting, as the open platform can become slippery in rain and strong winds may reduce visibility.

The tower's core is a 22.6-metre concrete geodetic measuring tower erected in 1978, which replaced a wooden structure. When it was converted in 2013–2014, a steel frame clad in larch was wrapped around it at every level and a 133-step spiral staircase was built inside. The renovated tower opened on 9 October 2014.