Were would a pile of boulders come from if there are no mountains or any other places they would come from were do you think they came from?

If there are no mountains or obvious geological formations nearby, a pile of boulders could have originated from various natural processes. They might have been deposited by glacial activity, where glaciers transport and leave behind rocks as they melt. Alternatively, they could have come from river erosion, where water breaks down larger rocks into boulders and carries them downstream. Human activity, such as construction or landscaping, could also be a source if the boulders were intentionally placed there.