Besides a traditional geodetic (horizontal and vertical control) network of passive man made=survey_point many nations (and even global agencies such as the IGS) have active GNSS reciever/antenna's that collect satellite observations; and contribute towards the foundation of modern geodesy. These CORS are often co-incident with more traditional beacons -> TRIGSURVEY How would we tag this? asked 12 Aug '22, 20:45 arkriger |
You are looking at wrong feature. They are in answered 13 Aug '22, 11:14 Kovoschiz |