It is located to the south of Pakihi Island, in Kawakawa Bay (east of Beachlands and north-east of Clevedon).

The island is the site of a quarry which extracts a decorative red-coloured chert known as "McCallum chip".

[1] This, along with sand from the island, is primarily used as in aggregates to make decorative red concrete.

[2] William Fraser McCallum and his brothers created a partnership in 1904 and established a quarry on the island in 1908.

The McCallum family is still running the mining operations today.