|
Depends on how big (high) the boulder is... Do you have any photos ?
BTW, 6 years ago I drilled a hole in the ground with the help of auger (bunnings), 75cm deep and 30cm in diameter (widened the original hole with shovel, as temporary solution for a concrete slab for pier (I think I used ~10 bags of pre-mix)... it is still there being used and it did not move a bit.
|