Earth-Wing is a small vacation home on a remote site in western New Mexico. The house site is on a mesa in a landscape that would overpower a conventional design. The owner is building a landing strip on the top of the mesa, so the house is built into the eastern side of the mesa and virtually invisible on the vast mesa top. Being off the grid Earthwing utilizes sustainable environmental design and materials including passive solar, and an innovative sod roof design to moderate temperature changes and shelter the house from severe western winds. The design optimizes the majestic views of the site while providing solar heat gain through an innovative central kiva courtyard. The room layout was tailored to give maximum privacy for each room while maintaining a spacious feel to the living spaces.