Thoreau writes in his journal:
Ilere is a little brook of very cold spring-water, rising a, few rods distant, with a gray sandy and pebbly bottom, flowing through this dense swampy thicket, where, nevertheless, the sun falls in here and there between the leaves and shines on its bottom, Meandering exceedingly, and sometimes running underground. The trilliums on its brim have fallen into it and bathe their red berries in the water, waving in the stream . . .