Four Coast Guard Aids to Navigation Team Kodiak personnel completed a build of the 15-ft Coast Guard aid to navigation tower four miles south of Point Hope August 2, which is the only permanent Coast Guard aid to navigation tower north of the Arctic Circle. In January 2009, a waterways analysis and management review was conducted on the North Slope. The WAMS identified local interest to enhance safety for the subsistence users and value to maritime traffic in the area. The proposal to re-establish ATON in Point Hope was approved.