Despite the title, which suggests that this is a comprehensive study of
Native American creation myths, this is actually a very good set of
animal myths from two tribes of California, the Wintu and Yana.
These tribes inhabited the northern Central Valley; the
Yana are closely related to the Yahi, the tribe of Ishi,
the 'last wild Indian'.
Also, these are not creation myths per se;
they are tales from an epic cycle about
the proto-animal inhabitants of the California dreamtime, the
beings who existed before the arrival of humans.
That said, this is a very reputable collection which is cited to this day
in scholarly papers about native California.
Curtin treats this this lore with great respect, and because
he is also a first-rate story teller, this is also a great read.
Curtin, a distinguished folklorist and author, also wrote
Tales of Fairies and of the Ghost-World, a collection of Irish supernatural folklore.