This makes writing 3D modeling code and turning threads look downright attractive:

The previous owners apparently surrounded a cedar (?) tree with a ring of large, decorative rocks. The tree vanished long before we arrived, with the stump accreting random stones, bricks, and similar impedimenta ever since; my first task involved (re)moving a couple hundred pounds of rocky debris.
After using the stump as a fulcrum for that steel bar to break the rotted roots and loosen the surrounding soil, it’s out and away:

Back to the Basement Laboratory …