Regarding the same darker green on the Google maps:

I asked the Gmap4 creator, and he wrote back:

I'm clueless.
First time I have seen it.


From the looks of the Google Maps and other situations in the Sierra, including the placement of the North Fork Whitney "trail", and the Main Trail, and the naming of the "Frog Pond", it appears there are some bozos in the map department who just have no clue what they are doing.