Keywords: joshua tree national park joshuatreenationalpark oasis of mara oasisofmara desert fan palm oasis twentynine palms twentyninepalms ca california burrow animal outdoor tree plant Located where the Pinto Fault allows groundwater to reach the surface, the Oasis of Mara sustains a dense gathering of life in the arid desert. NPS/Brad Sutton Located where the Pinto Fault allows groundwater to reach the surface, the Oasis of Mara sustains a dense gathering of life in the arid desert. NPS/Brad Sutton |