Locus perennis, Benchmark and technical monument in Lišov, Czech Republic

Locus perennis is a benchmark monument in Liscov and ranks among the most important technical monuments of the Czech Republic. The structure consists of three stepped sections and was built as an elevation surveying point in the Austro-Hungarian Empire.

The Lišov benchmark was built in 1877 as one of seven main points of the Austro-Hungarian precision levelling network, measured by the Military Geographical Institute in Vienna between 1873 and 1896. The stone monument protecting it was made in 1889 by Anton Panoch after a design by Captain František Netuschill, and a memorial charter was deposited inside on 12 May 1890.

The name refers to its role as a lasting reference point, reflecting an era when surveying and mapping were fundamental state responsibilities. Visitors can see today the carved markings that show how precisely the old surveyors had to work.

The monument lies on a main route between České Budějovice and Třeboň and is easily accessible. There is a rest area for visitors, and several hiking trails begin nearby, making it a convenient stopping point for walkers.

The Latin inscription on the middle block reads "Locus Perennis" and dates the monument to 1889, although the benchmark itself was set in 1877. A memorial charter was placed inside on 12 May 1890 and survives in poor condition; further charters followed in 1905, 1927, 1940, 1946, 1963, 1969, 1971 and 1978.