The oak tree grows at Mrvar home on Hrib near Škrjanče. Eight metres above ground the mighty singular trunk branches into two treetops that form a comprehensive crown. It has a chest-high perimeter of 680 cm. According to oral tradition it is supposed to be around 400 years old. In1989 lightning had cut the eastern treetop. In the same year it was restored. The Hrib oak tree is the thickest oak in Novo mesto municipality and fourth thickest in Slovenija.