USGS Investigators: David Clow
NPS Investigators: Jim Roche
| 2013 | 2014 | 2015 | 2016 |
|---|---|---|---|
| $99,970 | $100,000 | $50,000 | $50,000 |
Effects of backpacker use, pack stock trail use, and pack stock grazing on water-quality indicators, including nutrients, E. coli, hormones, and pharmaceuticals, in Yosemite National Park, USA
