The Morrison occurrence is located on the south east slope of Mount McClennan.

The area is underlain by Lower Cambrian to Devonian meta- sediments consisting of chlorite-sericite-quartz schist and carbonaceous graphite and metavolcanics consisting of calcareous chlorite schist and greenstone of the Eagle Bay Formation. A northeast trending fault cuts the rocks.

Gold is reported in quartz veins and altered chlorite-sericite-quartz schist. Mariposite probably occurs in the schist.

In 1962, a channel sample is reported to have assayed 13.7 grams per tonne gold (Assessment Report 436).

In 1962, Herslev & Humphrey completed a program of geological mapping, sampling and a dip needle survey on the area as the Sinbad and Roc claims. In 1966, Crowpat Minerals optioned the property and completed three diamond drill holes, totalling 451.5 metres. During 1969 through 1971, Calby Mining completed five diamond drill holes, totalling 365.4 metres, and trenching. In 1975 and 1976, Kerr-Dawson Associates completed a program of geological mapping and soil sampling on the area as the Nimsic claims. In 1977, Canadian Nickel completed a program of geological mapping, soil sampling and ground electromagnetic and magnetic surveys. During 1983 through 1988, Placer Development completed programs of geological mapping, ground and airborne geophysical surveys and geochemical sampling on the area as the Noble 1-6 claims. In 1989, Placer Dome and Denison Mines completed a program of geological mapping, rock and soil sampling and ground geophysical surveys. In 2010, the area was prospected as the Sunrise East claims. In 2012, Montego Resources completed a program of rock sampling and airborne geophysical surveys on the area.