01
Mineral property
acquisitions
Identifying and evaluating mineral interests with substantive geological, ownership, and commercial characteristics.
INDEPENDENT MINERAL INVESTMENT
The right assets.
The right structure.
Private mineral property acquisitions and investments shaped by firsthand mining experience, commercial judgment, and a long-term owner's perspective.
SIERRA RESOURCES LLCPRIVATE OWNERSHIP. PRINCIPAL-LED DECISIONS.
01 / 04THE COMPANY
A private partnership with a clear investment mandate.
Sierra Resources LLC is a mining acquisition and investment company founded on a simple principle: the quality of an opportunity depends on both the mineral asset and the structure of the investment.
Led by David Pennington and Patrick Fagen, Sierra evaluates mineral properties, ownership interests, and strategic transactions with an emphasis on disciplined diligence, practical execution, and long-term alignment.
THE INVESTMENT FOCUS
Built around
real assets.
We focus on mineral opportunities where informed diligence and an appropriate ownership structure can create a credible foundation for long-term value.
Mineral property
02
Strategic ownership
& consolidation
Bringing fragmented interests and stakeholders into structures suited to the requirements of each asset and transaction.
03
Capital & transaction
strategy
Aligning the economics, capital requirements, diligence, and execution sequence before committing to a path forward.
AN OWNER'S PERSPECTIVE
A mineral asset is only as valuable as the path to realize it.
Resource potential matters. So do title, permitting, access, capital requirements, and the terms under which ownership is acquired. Sierra examines the whole picture before making a commitment.
HOW WE EVALUATE
Disciplined
from the start.
Investment decisions are made with a focus on downside exposure, transaction mechanics, and the practical realities of mining.
Understand the asset
Review the mineral opportunity, available technical work, historical activity, site setting, and principal uncertainties.
Test the ownership
Assess title, claim standing, counterparties, encumbrances, and the legal and commercial rights being acquired.
Structure the investment
Evaluate transaction terms, capital obligations, risk allocation, and alignment among the parties.
Plan for execution
Establish realistic priorities for diligence, closing, stewardship, and subsequent asset-level decisions.
THE PEOPLE BEHIND SIERRA
Experienced principals.
Direct involvement.
Sierra brings together decades of complementary mining, engineering, real-asset, and transaction experience.
DP
CO-PRINCIPAL / SIERRA RESOURCES
David Pennington
David holds a degree in civil engineering and brings more than three decades of experience across mining, engineering, real assets, and complex transactions. His work emphasizes acquisition structuring, due diligence, capital strategy, and coordination of the commercial and technical elements of a transaction.
Transaction strategy • Engineering • Investment structuring
PF
CO-PRINCIPAL / SIERRA RESOURCES
Patrick Fagen
Patrick has more than four decades of entrepreneurial experience, with extensive hands-on involvement in mineral property acquisition, hard-rock mining, permitting, development, and operations. His experience grounds Sierra's evaluation of the operational and regulatory realities behind each opportunity.
Mining operations • Property development • Permitting
Independent by design.A focused partnership with direct principal oversight.
START A CONVERSATION
The next opportunity
starts with a discussion.
Sierra considers mineral property acquisition opportunities and strategic ownership transactions. For an introductory conversation, contact David or Patrick through their existing professional office.
Contact the principalsInterim inquiry route through California Mining Consultants. Sierra-specific contact details can be added before public launch.