Here's the Scale and Passage Map for this passage.
PASSAGE MAP:
P1: Historiographical trend of analyzing explorers' reactions to new land, primarily done in one case by govt. records.
P2: Discussion of why this is problematic and why Asian settlers should be considered as well.
P3: Specific examples of how Asian settlers reacted to and changed Pacific Coast landscape.
P4: Historical legacy of area must include actions of Asian settlers.