For thousands of years the area now known as White Rock was inhabited by a Coast Salish tribe called the
Semiahmoo. The town of
White Rock grew from a Canada Customs
mandate that ports of entry be located one mile from the border, which in 1846 was determined to be the
49th parallel. Then came the railway, bringing tourists from Vancouver and New Westminster. The rock itself, stained white by seagull poop, was bright enough to be used as a beacon by 19th century sailors. Now it's
painted white.
(1920-ish photo from BC Archives.)