Note 2 — Chapter IV
Reading edition
Perhaps the distinction should be made here between the muskeg and the slough. The slough was simply any depression in the ground filled with mud and water. The muskeg was permanent wet ground resting on soft mud, covered over on the top with most deceiving soft green moss which looked solid, but which quaked to every step and gave to the slightest weight. Many muskegs west of Edmonton have been formed by beavers damming the natural drainage of a small river for so many centuries that the silt and humus washed down from the mountains have formed a surface of deep black muck.