Olšová věž – Skály u Sloupu on Clmb House. Venue in Skály u Sloupu, Novoborsko, Lužické hory, Czechia. Olšová věž is an individual climbing rock in Skály u Sloupu, Novoborsko, Lužické hory, Czechia. The ČHS record includes traditional sandstone climbing. The Č...