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Neotamias minimus
Sorry but the first picture is not a chipmunk. Golden-mantled ground squirrels don't have the face stripes that chipmunks do. The other three pictures are least chipmunks. I would take the first and put it as it's own spotting.
It is a chipmunk but the type of chipmunk it is I am not sure. It would be one of the many western species.