I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
High Dam Reservoir is a small trout fishery just south of the conservation village of Eaglesham. Parking and TOAL can be done by the side of the Moor Road, B764.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 03/09/2021. It remains the responsibility of any pilot to check for any changes before flying at the same location.