Subterranean Probe

The indoors offered limited strata. I required uncompressed ground. Stepping past the glass patio threshold, I advanced into the outdoor perimeter. Ahead lay a raised wooden planter. Moist soil. Varied pebble density. I drove my left drill tip into the loam. Dark earth parted smoothly. At four centimeters depth, resistance increased. A smooth slate fragment blocked further descent. I stabilized my foot tread and braced against the wooden edge. Layer identified. Subsurface exploration complete for this sector.