This single-ditch KGA has 58m diameter and shows an uncommon number of three entrances. Its southernmost entrance is perfectly on the contour line with the centre in today’s terrain. The other two entrances may have followed a curved slope line running through the KGA centre. However, they also allow an astronomical interpretation: the northwestern entrance is oriented towards sunset on the day of summer solstice, an orientation also found at KGA Pranhartsberg 2. The eastern entrance, leadng upwards in the topographicsl explanation, is more problematic: it fits equally perfectly to a hypothesized orientation towards equinox sunrise over raised horizon! But equinox orientation is a problematic concept according to more recent literature: its observation would require some higher mathematical concepts, and the ability to count and bisect the days of the year, or bisect the angle between the solstices. Also, it seems to be a unique occurrence in our sample of 32 KGAs. Therefore this equinox orientation may inded just be a coincidence.