Birding The Rush Creek Delta 16/06/18

We hiked 1.75miles RT to see some great birds, and more importantly GREAT rocks.
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Nice view looking back towards Sierra.
Pumice with an encrusted tufu-like substance.
Hiking down into the floodplain of Rush Creek.
Finding more and more obsidian.
Rush Creek looking to the north.
We saw something.
Rush Creek near the mouth.
Nice glass.
Gulls, gulls, gulls