Dolly Varden Silver Corporation (TSXV:DV, NYSE American:DVS, FSE:DVQ) has announced an expansion of its 2025 drill program at the Kitsault Valley and Big Bulk Projects in northwestern British Columbia. The program, which was initially planned for 35,000 meters of drilling, has now been increased to 55,000 meters. The expanded scope includes the addition of a fifth drill rig, which has already been mobilized to the project site.

Shawn Khunkhun, president and CEO of Dolly Varden Silver, commented in a press release: “With the strong support of our shareholders in the recently completed financing, Dolly Varden is well positioned to significantly expand its exploration drilling based on a strong start to the season, enabling us to test key exploration targets and continue expanding the high-grade silver zone at the Wolf Vein.”

Increased Focus on Wolf Vein and New Exploration Targets

The expanded program will prioritize infill and step-out drilling at the Wolf vein, where ongoing exploration continues to return mineralized intercepts. Geological interpretations based on structural and alteration studies suggest that the Wolf vein exhibits an increasingly robust mineralization pattern toward the southwest. This trend appears to correspond with a higher-temperature alteration zone approaching the projected intersection with the Central Valley/Moose Lamb fault system, a major structure that connects with the Torbrit Silver Deposit.

Approximately 17,000 meters of drilling have been completed so far in the 2025 program. Exploration efforts to date have also included drill testing of multiple regional targets, including the Moose, Chance, and Red Point prospects.

This diversification of drill targets reflects the company’s broader exploration strategy across its consolidated land position in the Golden Triangle region.

Directional Drilling Approach Reduces Overall Core Length

Dolly Varden has also modified its approach to drilling in 2025 by focusing on directional drilling techniques. This strategy allows multiple intercepts to be drilled from a single “mother hole,” reducing the total volume of new core required.

While the drill program is reported as 55,000 meters based on the full length of each hole (assuming each started from surface), the actual number of new meters drilled is expected to be approximately 41,000 meters. This approach enables the company to obtain the same number of mineralized intercepts while significantly lowering the total amount of core drilling, particularly at Wolf and Homestake Silver.

Geological Mapping and Sampling Intensified Across 100,000 Hectares

Alongside the expanded drill program, Dolly Varden’s geological team has intensified fieldwork efforts across its consolidated land position, which now totals approximately 100,000 hectares. This area includes prospective Hazelton formation rocks, a key host lithology in the region known to support high-grade silver and gold deposits.

Ongoing mapping and sampling in underexplored areas are aimed at generating new drill targets for future programs in late 2025 and into 2026. The company has not yet provided specific details about any new discoveries from this fieldwork.

Big Bulk Project Drilling Underway

The Big Bulk Project, which is part of the broader Kitsault Valley Project, is currently being tested with a dedicated drill rig. Located 10 kilometers east of the Torbrit deposit, Big Bulk is considered prospective for copper-gold porphyry mineralization. The area is thought to host mineralization styles similar to other deposits in the region, such as Red Mountain, KSM, and Red Chris.

This marks a renewed focus on base metals exploration within Dolly Varden’s portfolio, which has historically emphasized high-grade silver and gold targets.

Project Background and Context

The Kitsault Valley Project, combining the Dolly Varden and Homestake Ridge projects, spans 163 square kilometers and hosts a number of historic high-grade silver mines, including the past-producing Dolly Varden, Torbrit, Porter Idaho, Mountain Boy, and Esperanza operations.

The project is situated within British Columbia’s Golden Triangle, an area well known for its mineral endowment. The structural and stratigraphic belts in the Kitsault Valley are the same that host other prominent deposits such as Eskay Creek and Brucejack.

In addition to high-grade epithermal-style silver and gold mineralization, the property is also considered prospective for porphyry and skarn-style copper and gold systems, particularly at Big Bulk.

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