Columbia Metals Corporation Limited

Columbia Metals Corporation Limited

March 17, 2005 10:44 ET

Columbia Metals Corporation Limited: Update On Columbia Metals' PII Llano Colorado Project In Sonora, Mexico




MARCH 17, 2005 - 10:44 ET

Columbia Metals Corporation Limited: Update On
Columbia Metals' PII Llano Colorado Project In Sonora,

TORONTO, ONTARIO--(CCNMatthews - March 17, 2005) - Columbia Metals
Corporation Limited (TSX VENTURE:COL) the "Company") is pleased to
provide a progress report on the work being conducted on, and planned
for its PII Llano Colorado Project located in south-eastern Sonora,

The PII claim was acquired, initially, to cover a high-grade sphalerite
(zinc) showing in felsic volcanic rocks. Subsequent geological and
prospecting work on the claim revealed several extensive gossan zones
and highly oxidized areas containing anomalous values in gold, silver,
copper, lead and zinc. A reconnaissance scale soil geochemical survey
revealed the presence of four, partially overlapping, geochemical
anomalies complemented by anomalous rock samples (previously reported
Dec 29, 2004). Additional claims have been acquired to cover all of the
gossan and anomalous areas. The project area now consists of eight (8)
100% owned claims (1984 hectares).

A detailed grid with lines at 150 metre intervals was established over
the geo-chemically anomalous areas and soil sampling has been conducted
at 50 metre intervals on the grid. Only partial results have been
received to date but the early returns are confirming and providing
additional detail to the previously recognized anomalies. In the area of
Buenavista Hill, location 1 described below, in-fill lines have been
established at 25 metre centres and the soil sample interval was reduced
to 25 metres.

Systematic geological mapping and rock sampling are being carried out
over the grid area. The property geology is proving to be considerably
more complex, lithologically and structurally, than had originally been
envisioned and depicted on government maps.

Early rock sample results indicate that in addition to the eastern zinc
zone at least 6 other mineralized zones are present on the enlarged
property. Some recently received results are presented on the
accompanying tables. A map showing the location of the zones will be
posted to the company's website following publication of this news

At location 1, (Buenavista Hill) a shallow shaft and a small adit
complex were found in a highly siliceous, brecciated, gossanous
andesitic to rhyo-dacitic volcanic rocks. 3 character samples from the
gossan area returned weakly anomalous gold values, highly anomalous
arsenic values, and modestly anomalous zinc values while more
representative chip samples, taken within the adits, conducted by S.
Sears, P. Geo. Q.P. are highly anomalous. The values obtained from four
of the locations are presented in the accompanying Table 1.

The full significance of all of these occurrences is not yet understood.
What is clear, is that at all locations, except location 6, where the
weathering/oxidation is extremely intense, the results from both rock
and soil samples are clearly anomalous at the geochemical level. The
anomalous suite of elements, gold (Au), silver (Ag), arsenic (As),
copper (Cu), lead (Pb), zinc (Zn) plus/minus barium (Ba), cadmium (Cd),
bismuth (Sb) are clearly the geochemical signatures associated with
classic volcanogenic massive sulphide deposits.

Additional results from rock and detailed soil sampling are still
outstanding but are expected shortly. An additional news release will be
issued as soon as the results have been received, compiled and plotted.
At this time the remaining five mineralized areas will be described and
the preliminary sample results presented.

Sample Descriptions - Columbia PII Colorado (February, 2005)

Sample# North- Easting Description

H031678 320 -1200 Gossan, boulders on steep slope
H031687 1275 -1200 Gossan, abundant large and small
blocks, close to bedrock
Adit H031689 225 -1200 Gossan, very heavy;
and H031690 125 -1200 Gossan; good exposure, chip
Buenavista sample across 15 metres
Hill H031697 adit 1.6 m Chip sample from small
open cut, NW of adit
H031698 adit 3.0 m chip sample, siliceous
breccia-gossan, along face west
of adit
H031699 adit 1.5 m chip sample of siliceous
breccia-gossan at entrance to
H031700 adit 1.5 m chip sample, siliceous
breccia-gossan, along face east
of adit
H031701 adit 1.5 m chip sample, siliceous
breccia-gossan, along face east
of adit
H031702 adit 1.5 m chip sample from siliceous
breccia-gossan in adit
H031703 adit 1.5 m chip sample from siliceous
breccia-gossan in adit

H031680 735 1260 Skarn; tremolite, calcite with
Po, scattered Chalcopyrite
North H031692 690 1500 Gossan
Eastern H031693 595 611880 Very silicified unit, was a
Area limestone?; gossanous
Skarn H031694 740 1350 Gossan
H031695 890 1500 Gossan
H031696 790 1100 Silicified limestone, gossanous

NE of H031691 3199417 612581 Gossan boulder on Barita claim,
Skarn northeast of Zinc claim

Silver H031684 1885 604012 Siliceous Breccia, gossanous
Geochem H031685 1230 -1000 Silicified andesite with 10 %
Anomaly prite as massive patches and
H031686 1360 -1000 Silicified andesite with up to
5% pyrite

Volcanic H031679 1260 -1000 Altered Volcanic Rocks,
Breccia silicified andesite?
& Skarn H031681 -680 300 Volcanic (silicified andesite)
Area with sulphides
H031682 450 150 Skarn; gossanous, from old pit
H031683 -625 300 Skarn, gosssanous limestone with
Ankerite, Py, Cu silicate

H031688 Standard Certified standard at 6.6 grams/

Feb 23/05 - all assay results in ppm
unless otherwise stated

Access roads to the anomalous areas are being established with the
concurrence of the local ranchers. Arrangements are being made to
conduct limited induced polarization surveys over the presently known
mineralized zones to help site diamond drill tests. Contract
specifications for a helicopter borne VTEM electromagnetic and magnetic
survey to be conducted in April are being finalized.

Field work was carried out by the Columbia's Mexican geological
personnel under the supervision of S. Sears, P. Geol., Q. P.

Sample preparation was performed by the ALS Chemex sample preparation
laboratory in Hermosillo and all assay work was performed by ALS Chemex
in Vancouver. In addition to the routine quality control work carried
out by ALS Chemex the company has established a quality control protocol
consisting of the routine use of certified standards, sample duplicates
and blank samples.

This news release was prepared by J. E. Steers, P. Eng., Q.P., V. P.
Exploration for the company with the assistance and concurrence of S.
Sears, P. Geo., Q.P.

Shares Outstanding: 37,458,077


Contact Information

    Columbia Metals Corporation Limited
    Carl Di Placido
    (416) 364-6799
    (416) 364-2595 (FAX)
    The TSX Venture Exchange has not reviewed and does not accept
    responsibility for the adequacy or accuracy of this release.