Charts. Lama Passage and Seaforth Channel, British Columbia, from British survey in 1866-69, scale naut. m.=1.6 in.; with insets, McLaughlin Bay, Lama Passage, scale 1000 yds.=2.46 in.; Kynumpt Harbor, Seaforth Channel, scale 1000 yds.=2.46 in.; chart 1765.