The United States Coast Guard Cutter Katmai Bay heads under the Portage Lake Lift Bridge Tuesday before docking at Lakeshore Drive in Houghton. BMC Casey McDonald at the Coast Guard station in Dollar Bay said the Katmai Bay will provide an escort for Isle Royale National Park employees who will get the park ready for the upcoming season. The employees are traveling in a former military landing craft. The two vessels left Houghton at 8 a.m. today. The Katmai Bay has been conducting ice-breaking operations on Lake Superior.