Retaining walls can level a sloped yard, prevent erosion and look beautiful! Check out these distinctive retaining wall ideas ...

The city of Boulder recently announced starting what's been described as "a multi-year trail and ecological restoration ...

An algorithm running on HEAP's control module subsequently determined the best location for each boulder, in order to build a stable 6-meter (20-ft) high, 65-meter (213-ft) long dry-stone wall.