The majority of todays trigonometric networks were stabilized in the first two decades after II. World War. After 2006, with the introduction of GNSS surveys, national trigonometric networks lost most of their practical significance. In my graduation thesis, I checked the field status of national trigonometric marks in the area of Žužemberk and their suitability for currents GNSS measurements. For fieldwork, I reviewed spatial records; such as topographic maps, maps of cadastral municipalities, map sheet boundaries for scale 1:5000, shaded reliefs and the archival database of trigonometric marks. I prepared a list of all trigonometric marks in a selected area and transformed theirs coordinates in D96/TM. In the field I checked the current status of 92 trigonometric marks. In the area of Žužemberk I found 65% of trigonometric marks. Of these, about 49% are suitable for GNSS measurements. The majority of preserved marks are located on the overgrown terrain 71% and the least 46% on urban terrain. A comparison of the proportion of preserved marks according to the order of the trigonometric network is added. I found 86% points of the trigonometric network of III order and 71% points of the trigonometric network of IV order.
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