No More Frogs In Sierra Lakes.

Personal memory by David Lindsay

1960Tioga Pass Rd, California, USA

When I was young, our family would go camping and hiking in Yosemite every year. I remember that many of the mountain lakes had so many frogs you might accidentally catch them when you scooped up water to drink from the lake. Those frogs have been gone for a long time and now you need to filter that water to drink it safely.