Moso's Footprint, Rock formation on Savai'i Island, Samoa

Moso's Footprint is a shallow depression in a thin bed of heavily jointed basalt, about 2 m long, in the forest near Fagalele Bay on the eastern side of Falealupo village, Savai'i. Rootlets of a tree grew into the joints; when the tree toppled in a cyclone, the roots dislodged surface blocks and left the hollow.

Geologists attribute the 2 m depression to a thin bed of heavily jointed basalt. Rootlets of a tree spread over the surface and penetrated the joints; when the tree toppled in a cyclone years ago, the roots dislodged surface blocks and left the hollow. The site lies in forest near Fagalele Bay, in the eastern part of Falealupo village on Savai'i.

Local tradition connects the depression to a giant named Moso, who supposedly left his footprint here while walking toward Fiji across the ocean. The story remains part of how people in this region understand their connection to neighboring islands.

The depression lies in forest near Fagalele Bay, in the eastern part of Falealupo village on Savai'i, not on the northwest coast. The Latin source gives it as about one metre wide and three metres long, so expect a shallow, low basalt outcrop rather than a deep pit. Approach on foot through the village area; the ground is uneven forest floor.

The Latin name Vestigium Mosonis appears in a 1966 field archaeology report on Savai'i by A. G. Buist, listed as "Footprint of Musso". Wilhelm von Bülow recorded in 1899 that Moso was the aitu of part of Falealupo village, dwelling in Fagalele Bay north of the village.