The Cirrus West Property is an early-stage lithium exploration project located in the Eeyou Istchee James Bay region of Québec. The project covers 3,866 hectares across 73 mineral claims and is situated approximately 3 km west of the Billy Diamond Highway and 62 km south of Camp 507, a key base for regional exploration operations.
The property is accessible via helicopter from Camp 507 and lies close to the Billy Diamond Highway, offering strategic access for both personnel and equipment. Field activities during the 2024 season were supported from Camp 507, with helicopter transport used to reach target areas across the property.
Cirrus West lies within the La Grande Sub-province, underlain primarily by tonalite, quartz diorite, and granodiorite intrusives, as well as units of metasedimentary rock and mafic volcanic rocks. These rock types are consistent with those hosting lithium–cesium–tantalum (LCT) pegmatites elsewhere in the region.
Little historical exploration has been documented on the property. However, the staking was motivated by the presence of strong lithium, cesium, and rubidium anomalies in government lake sediment datasets. The regional context, including proximity to known spodumene showings, supports its exploration potential.
The 2024 program consisted of:
Crews identified several pegmatite dykes, many showing coarse textures and mineral assemblages including feldspar, quartz, biotite, muscovite, and garnet—consistent with fertile LCT-type systems.
A total of 61 rock samples were collected. Highlights include:
Several samples returned low K/Rb and Nb/Ta ratios—important geochemical signatures often associated with evolved granites and pegmatite fertility.
Although spodumene was not encountered in this phase, the geochemical indicators and mapped pegmatite intrusions suggest Cirrus West remains a promising candidate for LCT pegmatite discovery. The southern portion of the property remains relatively unexplored and presents strong potential for follow-up work.
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