Hi there guys and gals. I’m rather new to this forum, so please do excuse me if the question that I ask has already been asked or dealt with. I have been asked by a surveyor to do a survey of a large field, however, the field has potentially got knee high grass/scrub on it. When the surveyor does a traditional survey, they obviously take the readings from “ground” level with their equipment. Am I right in saying that photogrammetry will more than likely capture the surface area/detail of the elevated surface (i.e. top of scrub/grass)? If this is the case, for me to get an accurate “ground level” survey would it help to use GCP’s at ground level? Any advice or tips for me, on how to get accurate data for this type of scenario, would be very much appreciated. Thanks to all in advance.