 This results in steep cliffs on the northern shore, while there are several small sandy beaches and a tidal mudflat on the east side.The center of the island contains glacial till that supports tree and shrub cover.As a result of previous planting, the island hosts large examples of oak, maple, juniper, and birch trees, while self-seeded huckleberry and viburnum mix with common greenbriar, dewberry, sumac, and poison ivy.