This photograph shows the Hanscomb Lot around Sebago Lake. In 1915, the Portland Water District trustees embarked on an effort to reforest the land surrounding Sebago Lake with white pines to create a watershed for the protection of the Lakes' water.

The Portland Water District was interested in the land around Sebago Lake because they had constructed a pipeline from Sebago Lake to Portland in an effort to increase the water supply to Portland. The trustees agreed, in 1908, that conservation efforts were necessary to actively protect Sebago Lake as a public water supply and also began to put limits on the use of the shoreline near the pipeline intake.