Companies A, B, and F, however, encountered a Japanese patrol near the summit of Mount Austen.

Puller's battalion then camped for the night and prepared to climb Mount Austen the next day.

Most of the survivors from Shōji's force joined other Japanese units defending the Mount Austen and upper Matanikau River area.

The most prominent hills were called Mount Austen, the Galloping Horse, and the Sea Horse by the Americans.

Emplaced artillery on Mount Austen delivered harassing fire on Henderson Field.

General Patch, however, was convinced that these events illustrated an unacceptable risk to Henderson Field by Japanese troops stationed on and around nearby Mount Austen.

Since the beginning of its offensive on Mount Austen, the 132nd had lost 115 killed and 272 wounded.

East of the Matanikau was Mount Austen.

On 22 January, the Americans were able to move a light tank up their supply trail to Mount Austen.

The Americans counted the bodies of 431 Japanese in the remains of the Gifu's fortifications and 87 elsewhere around Mount Austen.