end of Kenai Lake, and the same elevation was observed in the valleys of the streams mentioned. The bench gravels show a thickness of in the upper valleys, where they have been cut through by the streams. Evidences of a former period of glacial activity are seen on all sides in broad-bottomed U-shaped valleys, polished rock surfaces, and transported boulders. The shores of Turnagain Arm afford frequent proof of ice action in glacial markings and striated pebbles. Hanging valleys are not uncommon. Flora and fauna The east shore along the Kenai Peninsula, from the mouth of Turnagain Arm nearly to Kachemak Bay, is low and comparatively flat, but is for the most part heavily wooded. The flora of the mountainous district about Turnagain Arm is different from that of the coastal plains of other parts of the inlet. The low country near Hope consists of a grassy tide flat, about 50 acres in extent, and a few miles of forest and occasional small swamps along the lower part of Resurrection Creek. Balsam poplars, paper birches, alders, and willows abound near the streams, and spruces (Picea canadensis and Picea sitchensis) and hemlocks (Tsuga mertensiana) are common on the slopes and slightly elevated flats. A third species of spruce (Picea mariana) is found in the small peat bogs, along with smaller Hudsonian plants. (Ledum), crowberry (Empetrum), and dwarf birch (Betula glandulosa) are in profusion. Of the larger trees, the hemlock is abundant, but it is exceeded in individual size by the spruces. The conifers ascend the mountain slopes to about but above that point rapidly disappear. Beyond this elevation are alder thickets, small patches of dwarf willows and birches, and vast stretches of waving grass from high. Still higher, the slopes and rounded backs of the ridges are cushioned with a mass of heather and heather-like shrubs, chiefly Empetrum nigrum. This extends up to an approximate altitude of , above which there is very little or no plant growth. The whole country is characterized by the abundance of high grass; otherwise it is a typical Hudsonian-Alpine region. Dall sheep, hoary marmot, American black bear, American marten, and long-tailed chickadee are noted. On May 3, 2019, a Falcated Duck was spotted at Potter Marsh, a first for the area and the whole state of Alaska. The last sighting was on May 4, 2019 See also Kenai Mountains – Turnagain Arm National Heritage Area