 The gully already existed, which by the late 19th century already marked the division between the urbanized city territory and unurbanized outskirts.The earth and gravel were dug here and used to cover and drain the swamps on the Sava's right bank, so that neighborhoods of Savamala and Bara Venecija could be constructed, and especially because of the construction of the Belgrade Main railway station in 1884.After the works were completed, the area around Mokroluški Potok was left as a steep, elongated cut in the ground and so got its name (Serbian "prokop", cut or dug through).