Fall colors in Eastern Sierras

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Hi,
I am planning for a weekend to check out the fall colors in the Eastern Sierras.
Planning to drive from Bay area early fri eve(Sep 29) and stay overnight at Lee Vining/Mammoth Lakes(any cheap accomodations?) Plan to cover Rock creek area where there are apens. Maybe Devil's postpile as well. Is it a good time to see Rainbow falls? I mean, do they have water in fall?

I've heard so much abt Bishop as well. So, Sat night, plan to stay there overnight.

Any important places to see?

Any help on where to stay, what to see & where to see the best fall colors???
will be greatly appreciated.

Our plan is not finalised. So, we can still change it, if need be.

thanks
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