This paper began with a discussion basically on the importance and the problem of giving a place name for a prehistoric site.
The focus is on a preliminary report of archaeological excavations, published in 1934.
This report was written in Japanese and the site was described in local Amis spelling as Atogolan with a district name previously given in the past.
Thus the site was mistaken as another site recently known as the Tu-lan site for many years.
In this paper the present author after having surveyed the area, is able not only to clarify the mistake in detail, but also made a preliminary field report on some newly discovered prehistoric sites in the area and revised some site records made in 1992 in which Alogolan was included.