Updated Hundreds of trees, shrubs have been planted at the Atturbury-Lyman haven.
Citizen-scientist volunteers are needed for a bat monitoring project.
Sinkholes have formed along a segment of the popular Loop trail.
Weather service sees a decent chance the monsoon will wake up again.
"Encouraging developments" could mean another transplant of the wild sheep.
Monsoon rains haven't revived park's withering pond.
Completion on short segment expected in early 2015.
Wildflowers are in brilliant bloom in the mountains — bolstered by the monsoon.
Abundant monsoon rains have led to fire restrictions being lifted.
The Arizona-Sonora Desert Museum has canceled a popular bat-observation program.