During the first decades of the 19th century, American Bay was a favorite anchorage of
maritime fur traders, especially Americans sailing out of Boston. Along with Datzkoo Harbor and the Kaigani Harbors, a few miles to the south and several large
Haida villages that were in the vicinity at the time, this general area was known as "
Kaigani" to late 18th and early 19th century maritime fur traders. It was one of the most popular fur trading sites on the Pacific Northwest Coast, where maritime fur traders would trade with the indigenous
Haida people. Over a hundred fur trading ships visited American Bay and the Kaigani Harbors in the early 19th century. A trading post of the
Northwest Trading Company was established on American Bay in about 1883. The buildings were still visible in 1891. ==Geology==