SMN Sun Summit Minerals Corp

San Marco Resources Inc. (TSX VENTURE:SMN) is providing an exploration update on
its 100% owned 8,549 hectare La Buena property located approximately 13
kilometers north of Goldcorp's Penasquito mine in Zacatecas, Mexico. Highlights
of the La Buena exploration program include multiple gold-in-soil anomalies,
with a peak gold value of 0.678 grams per tonne (668 parts per billion). The
anomalously high gold values occur in Caracol formation metasediments
(siltstones and sandstones) over an area roughly 1.25 km x 1.0 km, which are
locally intruded by potassic-altered dikes.


San Marco recently completed a phase 1 exploration program on La Buena property.
This program included geological mapping, prospecting, gridding, soil sampling
and an Induced Potential/Resistivity survey that covered just over 8
line-kilometers. Most of the work focused on an area of weakly metamorphosed
Caracol Formation siltstone and sandstone found in the central part of the
property. Soil sampling within the 1.25 km x 1.0 km area was completed on grid
lines at 100-meter spacing, with sample intervals every 50 meters. Out of 177
soil samples collected, forty-five assayed between 50 and 100 ppb gold,
twenty-six assayed between 100 and 200 ppb gold and ten samples assayed more
than 200 ppb gold, with a high assay of 678 ppb gold. The samples were prepped
at the ALS Chemex facility in Zacatecas, and then sent to ALS Chemex in
Vancouver where fire-assay/A.A. analysis was done on the -80 mesh fraction of
each sample.


Four distinct sectors of anomalously high soil gold values (greater than 100 ppb
gold) occur within the area of metasediments at La Buena as northwest and
northeast trending zones. The entire area of anomalous gold in soils occurs
along the fold axis of a large-scale syncline that strikes east-west, dips to
the north and plunges to the west. The metasediments are comprised of Caracol
Formation siltstone and sandstone that are resistant to weathering and form
hills that emerge out of the Bonanza Valley pediment. Within the 1.25 km x 1 km
gold anomaly, monzonite and granodiorite subvolcanics intrude the metasediments
locally. Assays from 16 rock chips samples of exposures of granodiorite dikes
returned gold assays ranging from 58 to 247 ppb gold. Two grab samples of
silicified Caracol metasediments returned gold assays of 2.27 and 5.24 gpt gold,
and samples from a shallow hand-dug trench returned 10m that averaged 0.509 gpt
gold.


"San Marco Resources is proposing to complete additional exploration, road
building, trenching and drilling in 2011," states Robert Willis, chief executive
officer of the company. "The objectives of the proposed surface exploration
programs will be to not only define drill targets in the area of this soil
anomaly, but also to investigate other areas of the property which exhibit
interesting geology and mineralization."


San Marco expects the results of the 3-D, I.P. / Resistivity survey carried out
over this same zone of gold in soil anomaly, by the end of January 2011.


Field activities were completed under the direction of Brent Hendrickson,
Vice-President of Exploration for San Marco Resources who has been working in
the region since 2006. The technical information contained in this press release
has been based on information reviewed by San Marco's President, Robert D.
Willis, P.Eng., a 'qualified person' for the purpose of National Instrument
43-101, Standards of Disclosure for Mineral Projects of the Canadian Securities
Administrators.

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