I remember a TV series called The Immigrants, about one Norwegian family's move to Minnesota. Their farm back in Norway had a few inches of topsoil over glacial cobble and bedrock. When they got to Minnesota, the father stuck a rod down into the topsoil and it went down five feet with no rocks. Then he tried a few more places: Same result. He knew they had arrived in Heaven.
The reason I thought of this today, is that I am digging post holes to put chain link around my solar array. Some holes I dig with a water jet in about one minute. Some involve a lot of rocks and cursing. Pandemic result: Chain ink fabric has gone up 250%, and Lowes and Home Depot have zero stock. Fortunately, my good neighbor has some used rolls from a fence he replaced I can get for the hauling!