Photograph of mining operations on Sulphur Creek.
Inscription verso: The valley surface is stripped of sod and the frozen gravel is thawed with water in order to loosen the gold-bearing gravels in the spring. As soon as the ground is soft, dredges begin sorting the gravel to find the gold. Stripping & thawing along a tributary of Klondike R. (Sulphur Creek) note pipes for thawing.