earthcovered

They lived in slab-walled, earthcovered houses or in single-room pits dug deep into the valley floor, the roofs supported by four posts.

The Architecture of Pueblo Bonito : 1964

I took my sketch-book with me, and have made many and faithful drawings of what we saw, and full notes of everything as translated to me by the interpreter; and since the close of that horrid and frightful scene, which was a week ago or more, I have been closely ensconced in an earthcovered wigwam, with a fine sky-light over my head, with my palette and brushes, endeavonring faithfully to put the whole of what we saw npon canvass, which my companions all agree to be critically correct, and of the fidelity of which they have attached their certificates to the backs of the paintings.

Letters and notes on the manners, customs, and conditions of the North American Indians 1841