The Ayesha property covers several layers of fine-grained blue-grey to light-grey limestones separated by fine-grained grey knotted schist, all of the Mississippian to Lower Permian Milford Group. The rocks strike north to northeast and dip to the west at moderate angles. At least three limestone layers several metres thick are exposed. They are lenticular and have a branching outcrop pattern suggesting structural repetitions produced by folding.
The principal showings are along the western contact of one layer of limestone where it is transected by three faults. The faults which strike northwest and dip 60 to 65 degrees to the southwest have offset the contact 4.5 to 6 metres to the left. The showings consist of lenses of rusty-weathering siderite in the limestone and contain galena, sphalerite, pyrite and minor chalcopyrite. The siderite replaces the limestone near the faults and occurs as a vein-like filling along the faults. The most extensive replacement is near the faults, where, in one place, siderite with scattered sulphides forms a lens as much as 1.2 metres thick extending about 9 metres from a fault.
These claims are located on Cedar Creek about 4 kilometres by road from Ainsworth. The Ayesha claim was Crown granted to E.W. Herrick in 1891. Very little work has been reported on these claims prior to 1948. Mr. L. McPhee acquired the Ayesha, No. 5, Anna May, No. 5 Free., Kate, New York and Cecilia May Fraction sometime prior to 1948. Silver Hill Mines Ltd. was formed to develop the claims. The top adit on the Ayesha claim was extended 23 metres to make a total length of 41 metres. A tunnel on the No. 5 claim was driven for over 122 metres without intersecting the vein exposed on the surface above.
Northern Exploration Ltd. acquired the property in 1950 and began work on a surface showing above the Ayesha adit. A 3.6-metre wide lead-zinc replacement zone in limestone was exposed and traced for 9 metres.
In 1951, Ayesha Lead-Zinc Mines Ltd. acquired the property. Leasers began a raise 18 metres from the Ayesha portal. Replacement mineralization up to 1.5 metres in width was found in small pockets.
S.A. Liening, of Seattle, held an option on the property in 1953. The Ayesha tunnel was extended to a length of 116 metres. Narrow veins were intersected at 58 and 104 metres from the portal. On the second vein, 27 metres of drifting and a raise through to the surface were completed.
Triumph Mines Ltd. acquired the property in December 1953. The following year a 64-metre adit was driven on a fissure vein exposed on the No. 5 claim. At the end of the drift a 52-metre cross cut was driven to intersect another vein which had been explored from the surface about 30 metres above by a shaft 9 metres deep. A drift about 9 metres long was driven on this second vein.
The only work reported on the Anna May claim was done in about 1920. A tunnel was driven but apparently not far enough to reach the ore bearing zone.
The Ayesha has recorded ore production for 1911 and for 1949 to 1952, inclusive. A total of 70 tonnes of ore was produced, from which 28,739 grams of silver, 17,831 grams of lead and 9,306 of zinc were recovered.
