About Sierra | Sierra Mining & Exploration

About Sierra

Sierra Mining and Exploration is a skilled team of geology, mining, and commodity experts, capable of advancing projects from inception to production and marketing.

Our Mission

Our mission is to develop quality projects, operate responsibly, respect communities and culture, and grow through strong governance and partnerships.

Smart Project Development

Identifying, acquiring, and advancing high-potential projects in prospective mineral provinces, guided by science, innovative exploration methods, and a commitment to sustainability.

Respect for People and Culture

Building respectful relationships with Traditional Custodians and Indigenous communities, upholding cultural heritage, and fostering an inclusive, values-driven workplace.

Responsible Mining Practices

Developing and operating mines efficiently, cost-effectively, and with a strong focus on safety, environmental stewardship, and social responsibility.

Governance, Growth & Partnerships

Maintaining strong corporate governance, continually improving systems and processes, investing in our people, and cultivating trusted, long-term partnerships with stakeholders.

Our Values

At Sierra Mining and Exploration, our values guide every decision we make and shape the way we operate across all aspects of our business.

Integrity

We operate transparently and ethically, ensuring compliance and trust in all our activities.

Respect

We engage openly with communities, valuing cultural heritage, diversity, and local partnerships.

Teamwork

We collaborate with our partners to deliver safe, efficient exploration and development.

Innovation

We apply leading-edge technologies and ideas to unlock resources more effectively and sustainably.

Commitment

We pursue every project with determination, ensuring thorough, responsible management.

Delivery

We meet our targets and advance projects reliably, creating value for partners and communities.

Our Vision

Sierra Mining and Exploration’s vision is to become an innovative and responsible resources development company, delivering strong returns for our investors and high-quality products for our customers. We are committed to creating lasting value for the communities where we live and operate through exploration, acquisition, development, and mining, always with a focus on safety, sustainability, and environmental responsibility.

Our Mineral Exploration and Development Process

A step-by-step process that guides the journey from initial discovery through to informed mine development decisions.

STAGE ONE
Locate Potential Deposits

Promising locations are identified through innovative database assessments, geological surveys, and remote sensing techniques by the Geoscientist team.

STAGE TWO
Tenement Staking and Permitting

Securing legal rights and exploration permits involves regulatory compliance and proactive community engagement.

STAGE THREE
Surface Exploration

Detailed surveys, trenching, and sampling are carried out to obtain accurate mineral data.

STAGE FOUR
Early-Stage Exploration

More intensive methods, including small-scale drilling, are employed to analyse mineral content and quality.

STAGE FIVE
Resource Assessment Drilling

Additional drill samples are extracted to enable comprehensive analysis of subsurface geology and mineralisation.

STAGE SIX
Resource Modelling

A detailed 3D model of the mineral deposit is developed to estimate resources and inform mine layout planning.

STAGE SEVEN
De-Risking

Feasibility studies and impact assessments are undertaken to mitigate risks and ensure project viability.

STAGE EIGHT
Production Decision

A final investment decision is made regarding mine development, incorporating financing, permitting, and infrastructure planning.