Mayo Lake Minerals Inc. announced that it will shortly release its June plans to drill highly prospective targets delineated during its 2021 prospecting and soil sampling program in the Carlin West area of its Carlin-Roop silver project. Carlin-Roop is adjacent to the southern portion of Metallic Minerals' Keno property, Yukon. Thirteen grab samples¹ were collected during prospecting at Carlin West.

The silver content of seven rock samples ranged from 72g Ag Eq/t to 4,311g Ag Eq/t². The full results are listed in Schedule 1 hereunder with their locations on Figure 1. The grab sample yielding 4,311Ag Eq/t (3,994g Ag/t, 3.28g Au/t, 2.01% Pb) was located at the northern end of a very strong Ag in soil anomaly at Carlin West. It was on a part of the Priority Anomaly where the Ag in soil anomaly did not show its highest values.

Another rock sample that yielded 737g Ag Eq/t was located along a subtle secondary Ag in soil anomaly at an obtuse angle to the Priority Anomaly. Four grab samples, yielding 562, 199, 197 and 72g Ag Eq/t, were also located along an Ag in soil anomaly that was defined during the 2021 detailed soil grid sampling. Soil sampling at Carlin West has now delineated four linear Ag in soil anomalies beyond the Priority Anomaly, all of which provide favourable drill targets for high-grade Keno Hill Silver Mineralization.

These targets will be fully tested during Mayo's early summer 2022 diamond drilling campaign. In July 2021, in addition to the 13 rocks, a total of 131 soil samples from the C-horizon were collected on a 30m square grid at Carlin West. They were forwarded to the Bureau Veritas Commodities Canada Ltd. (BMV) laboratory where 15g of each sample was analyzed by Aqua regia digestion, ICP-MS analysis (BMV AQ201) for 36 elements (Ag, Al, As, Au, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, Hg, K, La, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Sc, Se, Sr, Te, Th, Ti, Tl, U, V, W, Zn).

Those rocks exceeding the upper limits of detection for AQ201 were analyzed by Aqua Regia ICP-ES (BMV AQ370) and the one sample with Ag exceeding the upper limits of detection was analyzed by fire assay (BMV AQ370). BMV's management system meets the requirements of ISO/IEC 17025 and ISO 9001 with their oversights and processes. Appropriate duplicates, standards and blanks are inserted in each analytical run.

Mayo has independently inserted sample duplicates at a rate of one per thirty-three collected samples.