Sagebrush Reservoir.

The Sagebrush Reservoir site is on a unnamed mesa at Mesa Verde National Park.  Archaeologist Dr. Jack Smith, who originally excavated the site in 1972–1974, joined up with WPI in 1998 to incorporate further studies and finalize his findings.  Like
Far View Reservoir, the mesa-top Sagebrush Reservoir was filled by runoff from compacted earth.  It was used between A.D. 950 and 1100, probably filling between five and six times per year.  It would have required considerable and constant maintenance.