Other Projects

Rimfire Portfolio - Tide, BC

• Mineralization identified over an area 1.7 x 3.2 kilometres in size.

• Three large soil geochemical anomalies within the mineralized area.

• 36 Zone discovery in 2004 identified 129.4 metres of 1.0 g/t gold. 2005 drilling expanded the area of known mineralization. Drilling at the 36 Zone has tested less than 5% of the gold-arsenic soil anomaly coincident with this mineralization.

• American Creek funded and operated $1.2 million drilling program which was completed in early September of 2007.

• American Creek Resources, the project operator, has not planned a field program for 2008.

• A 2007 drilling program targeted the 0.5 by 2.0 kilometre Crest gold-arsenic soil geochemical anomaly in July 2007.

• The anomaly hosts the 36 Zone where the 2004 discovery drill-hole intersected 129.4 metres averaging 1.0 g/t gold, including a 39.2 metre interval averaging 1.9 g/t gold. The primary focus of the program was to expand the 36 Zone and investigate its relationship to nearby surface showings. Drill results of the program are expected in late November.

The Tide property covers a large, polymetallic mineralized system in the heart of the Early Jurassic Stewart-Unuk-Iskut metallogenic belt. Numerous Au-Ag+Cu vein and porphyry deposits have been defined in this belt, associated with 193-198 Ma porphyritic intrusives of the Texas Creek Plutonic Suite. Many of these deposits have remained undeveloped due to difficult access, but the Tide property differs from them in its road connection to Stewart. Numerous Au-As and polymetallic Au-Ag-Zn-Pb-As zones have been identified since modern exploration commenced in 1980, spread over an area of 1,700 x 3,200 metres within the geochemical anomaly.


The Tide property consists of four contiguous mineral tenures covering approximately 24.0 square kilometres in the Skeena Mining Division of British Columbia. Rimfire owns the property 100% with an underlying 1.5% NSR held by Newmont Canada Limited.

American Creek Resources acquired an option to earn 51% in the Tide by completing $500,000 in exploration (the option was acquired from Serengeti Resources, whose original agreement with Rimfire stipulated $1.435 million in exploration plus cash and share payments to earn 51%). Upon vesting, American Creek can earn an additional 9% by funding $3.5 million in exploration by Dec. 31, 2010.

American Creek may earn a further 5-per-cent interest by completing a bankable feasibility study on the property. Rimfire may elect to have American Creek provide 100% of the initial production financing in return for an additional 5% interest in the Tide property. Rimfire would then repay its share of the initial production costs from production revenue.


The Tide property lies in the Coast Mountains of north-western British Columbia, approximately 36 kilometres north of Stewart. The property has excellent access with a well-maintained gravel road that connects concentrate-shipping port facilities at Stewart with the former Granduc mill-site, less than one kilometre southeast of the Tide property. A secondary road from the mill-site crosses the Bowser River and runs along the eastern edge of the property.


The combination of size of hydrothermal footprint, wide variety of styles of mineralization, demonstrated bulk tonnage gold intercepts in drilling, favourable metallurgy and excellent infrastructure access all combine to make the Tide property an extremely attractive exploration target.

• The footprint of the hydrothermal system at Tide is large at 4,200 by 2,000 metres and displays a variety and complexity of mineralization styles centred around a 200-1,000 metre wide feldspar-hornblende porphyry sill, an off-shoot of the 193 Ma Summit Lake Stock.

• Significant bulk tonnage gold potential exists at the 36 Zone where drilling by Rimfire in 2004 and 2005 successfully intersected broad intervals of low grade gold mineralization in several drillholes including 129.4 metres of 1.0g/t gold and including 39.6 metres of 1.92 g/t Au. Drilling to date has been confined to a 250 by 750 metre area within the 600 by 3500 metre Crest soil anomaly, characterized by >500 ppb gold and arsenic-in-talus-fines values, in which the 36 Zone is located.

• The 2007 drilling program to test the 36 Zone returned wide gold intersections in five of eight holes including very long intersections (207 and 174 metres) average approximately 0.5 g/t gold.

• Metallurgical work conducted on composites of this 36 Zone mineralization indicates 9.6 - 11.4% recovery by gravity alone and total recovery by gravity and cyanide leach of 74.9 - 81.0%.

Tide Property 2007 Drill Hole Plan click on image to view enlarged	36 Zone Cross Section - TIDE04-03, & 08 click on image to view enlarged
36 Zone Cross Section - TIDESection05-07 click on image to view enlarged	Regional Geology click on image to view enlarged