On Friday morning, February 23, 1945, four days after the Marines landed at Iwo Jima, Rosenthal was making his daily visit to the island on a Marine landing craft when he heard that an American flag was being raised atop Mount Suribachi, a volcano at the southern tip of the island. Upon landing, Rosenthal hurried toward Suribachi, lugging along his bulky Speed Graphic camera, the standard for press photographers at the time. Together with Marine combat still photographer Pvt. Bob Campbell and Marine color movie photographer Sgt. Bill Genaust, he began the climb up to the summit of Mount Suribachi. When they got about halfway up, they met Staff Sgt. Louis Lowery, a photographer with the Marine publication "Leatherneck" who was coming down the volcano after an enemy grenade explosion on top had knocked him off his feet and broke his camera. Lowery told them that the flag had already been raised at 10:40 am, and he had gotten photos of the flag on the summit. Lowery told them the view was good from the summit, and Rosenthal convinced Genaust and Campbell to continue to take him to the top with them since they were armed.