Originally called “Chicken Charlie’s Island”, this little island is a scenic wonder along the Columbia River that is nearly 10 acre large island on the Oregon side of the Columbia River. It can be seen from Interstate Highway, milepost 174. It is located approximately a half mile from Mosier, Oregon. It is believed to have hosted a chicken ranch on int in 1904 owned by the Reither family. In 1915 it was inhabited by Charles Reither who lived on it until his death in 1963. It is a privately owned small rocky island that hosts navigational lights and was an island referenced by Meriwether Lewis during the Lewis and Clark expedition. It is pretty rocky, barren and remote. It hosts douglas firs, willows, wildflowers, cherry, blackberry, and a little sandy beach. There is a three story wood frame house on it that was privately built in 1969. It was later renamed “Eighteenmile Island” by the USGS in 1934. In 2007 the island and house was for sale to the amount of 1.4 million. Great views of the island can be seen from the Mosier Twin Tunnels hiking trail along the Historic Columbia River Highway.