Description acceptable. A once-popular estimate that these places are over 2,000 years old was made by Henry Otley Beyer and disputed by Felix Keesing. Trees grow to cover these places during the three years that Aliguyon and his rivals spend throwing spears at each other in the four-part chanted epic Hudhud. Threats to these places such as the export of lauan mahogany, the golden apple snail, and pheretima worms are detailed in the “coda” of Charles C. Mann’s book 1493, which also covers the marketing of their products by the company (*) Eighth Wonder. The Halsema Highway is a popular road for viewing these (10[1])places, for which (-5[1])carabao serve as draft animals in Bontoc and Benguet provinces. These places were carved (-5[1])out of the (10[1])Cordillera region’s mountains by people once known by the exonym Igorot (“ee-go-ROTE”). For 10 points, (-5[1])identify these (10[1])earthworks used (-5[1])for wet rice (-5[1])cultivation on the (10[1]-5[1])island of Luzon. (10[6]0[2])■END■