By Susan Montoya Bryan
Zia Pueblo, New Mexico (AP)

After years of drought and livestock grazing, a spring sacred to an American Indian tribe in north-central New Mexico has dried up, and now the concern is that erosion, climate change and the region’s growing demand for water will keep the spring from recovering.

So Zia Pueblo, a restoration ecologist and a team of volunteers are doing some heavy lifting to get the spring flowing again.