Overview of triangulation station and net densification point 1:50,000

Overview of Triangulation Stations and Net Densification Points 1:50 000 (PTZB 50) is a multicolour overprint of thematic content onto the subdued Base Map of the Czech Republic 1:50 000. The thematic content covers the layout of inventory units, i.e. triangulation sheets in S-JTSK, their designation and the location of all trigonometric points, orientation points (OB1, OB2), net densification points and associated points. Points surveyed in ETRS89 are differentiated by colour. The overview is supplemented by the layout of map sheets of the State Map 1:5 000. Each map sheet contains a map legend with a selection of the most commonly used map symbols. Currently, PTZB 50 is printed on demand only.