Camosun Bog resides in the eastern section of Pacific Spirit Park, in Vancouver, BC.

Post glaciation an enormous chunk of ice remained in the spot which is today Camosun Bog. As the ice melted slowly, a lake formed around 10,000 years ago. Over the course of time the small lake was filled with plant debris and sediment build-up.  Sometime around 5,000 years ago the area transitioned to be a swamp with fast-growing sedges and grasses. Over time the plant matter and low oxygen conditions created an environment prime for the invasion of sphagnum moss. Once sphagnum moss established itself, the buildup of sphagnum began and has been occurring for the last 2,000 years.  The moss has maintained the conditions of high water level and low nutrient and oxygen levels characteristic of a bog. With human development of the area, the bog has changed.  Early logging operations utilized the bog only minimally for lumber as the soft ground made transport of logs difficult.  In the last 80 years have human activity has changed the status of the bog.
(Photo credit: Copepodo at

Bog Video