The goal? To build a 20 foot (6 meter) and 213 ft (65 m) long dry-stone wall as part of a park where the landscape was digitally planned, and the earth autonomously excavated. The coolest thing ...

Once a few rows have been stacked, backfill the wall with rock so it matches the ... They run multiple crews that specialize in block and boulder retaining walls, paver projects, outdoor living ...