Honey mesquite (Prosopis glandulosa) is in decline across the west. The causes are known, but the extent of damage is not. Groundwater pumping is the primary culprit. In th Borrego Valley mesquite dieback has followed unsustainable use of groundater. Recovery requires understanding and the use of lessons already known about container production and outplanting. Mesquite mounds (nebka) are particularly valuable and a project with some success is shown.