The Yelo showings are west of a small lake at the head of Struna Creek. Access is by air or 5 kilometres by foot up a steep canyon from the road to the Baymag mine (082JNW001).

The best outcrops of magnesite are about 350 metres southwest of the small lake. Mineralization is hosted in dolomitized carbonates of a shallow marine/reefal environment. The host formation is the Middle Cambrian Cathedral Formation. Mineralization consists of magnesium-enriched dolomite approaching magnesite composition. No samples of "high-grade" magnesite were identified. In general, the rocks on the claim group are dolomite, limestone and some magnesitic dolomite.

General assay values of MgO content are 42 to 68 per cent in calcined samples. A single sample assayed 87.5 MgO (calcined) (Assessment Report 6565).

Prospecting and sampling were performed in 1976 and no work has been done since. The Yelo claims were acquired by Baymag Mines Ltd. in 1989.