TNO

Terreno Resources Corp. ("Terreno" or the "Company") (TSX VENTURE:TNO) is
pleased to provide assay results of the recently completed 7 hole (1,108 metre)
drill program on its Poposa, high sulphidation, gold-copper, project in San Juan
province. The program targeted potential deep porphyry mineralization and near
surface epithermal gold as identified from surface mapping and sampling with
coincident geophysical anomalies. The drill program was carried out over a
strike length of approximately one kilometer within the Amarillo target area
(see figure 1: Drill Plan Map). Select drill highlights include:




--  PO-02 intersected quartz-feldspar porphyry with quartz-sericite-chlorite
    alteration and anomalous mineralization throughout most of the hole. Two
    separate copper zones were intersected including 24 m @ 0.14 % Cu from
    24 metres and 46 m @ 0.11% Cu from 192 metres. 
--  PO-03 intersected feldspar porphyry with quartz-sericite-chlorite
    alteration including several meaningful mineralized intervals including
    25 metres @ 0.79 g/t Au and 0.12% Cu from 42 metres and 10 m @ 0.86 % Cu
    from 298 metres including 4 m @ 2.03 % Cu. 
--  PO-04 intersected silicified sandstones and shale cut by hydrothermal
    breccia featuring low grade gold mineralization averaging 0.23 g/t over
    77.3 metres from surface including 16 metres of 0.40 g/t from 51 metres.
--  PO-05 intersected low grade copper and gold mineralization over 55
    metres grading 0.12 g/t Au and 0.11% Cu from 36 metres. 
--  PO-07 intersected a post mineral intrusive breccia with mineralized
    quartz-feldspar porphyry fragments. Mineralization was limited to small
    intervals including 6m @ 0.20% Cu from 117m and 3.4m @ 0.38% Cu from
    134.4m. 



"We successfully accomplished several important goals in our first drill program
at Poposa," commented Peter Mullens, VP Exploration. "Primarily; we intersected
wide intervals of porphyry rock and associated alteration including several
zones of potentially economic grades and widths. This tells us we have the right
host rocks and the potential for larger zones of mineralization exists. The
drilling also corroborated the results of our extensive geological and
geophysical modelling which shows that we may be close to the main source of the
mineralization. Given we only tested a small area with a limited amount of
metres, the results support an expanded follow-up program. Our geologists will
now take the summer to further interpret these results and plan our next
program." 




Table 1: Drill Results                                                      
                                                                            
Hole ID             Interval (m)   From (m)     To (m)   Au (g/t)     Cu (%)
----------------------------------------------------------------------------
PO-01                  Abandoned                                            
----------------------------------------------------------------------------
PO-02                         24         24         48       0.07       0.14
and                           38        112        150       0.09       0.10
and                           46        192        238       0.08       0.11
----------------------------------------------------------------------------
PO-03                         25         42         67       0.79       0.12
including                      8         50         58       1.32       0.23
and                           10        298        308       0.27       0.86
including                      4        302        306       0.61       2.03
----------------------------------------------------------------------------
PO-04                       77.3        4.5       81.8       0.23       0.03
including                     16         51         67       0.40       0.02
----------------------------------------------------------------------------
PO-05                         55         36         91       0.12       0.11
----------------------------------------------------------------------------
PO-06                  Abandoned                                            
----------------------------------------------------------------------------
PO-07                          6        117        123       0.09       0.20
including                      2        119        121       0.26       0.61
and                          3.4      134.4      137.8       0.21       0.38
including                    1.1      136.7      137.8       0.21       0.98
----------------------------------------------------------------------------
(i) note there is insufficient data to calculate true widths of the         
 intercepts.                                                                



About Poposa:

The Poposa project is a high sulphidation gold-copper system located in the
Cordillera Frontal of Argentina in San Juan province. The project is located in
the El Indio-Pascua/Lama metallogenic belt which hosts several multi-million
ounces gold deposits such as Veladero, and is approximately 50 km to the
south-south-east of Malbex Resources' Del Carmen project (See figure 1 for a
regional location map).


Work completed in the previous field season included geological mapping, the
completion of 72 trenches with continuous rock chip sampling, as well as the
completion of a CSAMT survey and a 7-line, Titan 24 DCIP and MT survey. Revised
geological modeling combined with the results of geophysical surveys has
identified two distinct exploration targets:




1.  Near surface epithermal gold in three district areas (Colorado, Amarillo
    and Morro). These areas are located within several kilometres of one
    another and have mineralization at surface (identified through
    trenching), strong resistivity over significant strike and depth
    (identified through the Titan 24 survey) and limited historical
    drilling. 
2.  Deep porphyry in two areas (Negro and DDH-13). The target is at depth
    along the unconformity with the basement and still remains to be tested.
    Geophysical surveys identified moderate chargeability/resistivity
    anomalies with coincident large aeromagnetic anomalies as potential
    porphyry ore shell locations in these areas. 



Technical Information 

Samples submitted to ALS Argentina lab were assayed by Au-ICP22 Au 50 g FA - ICP
AES finish and ME-MS41 aqua region digestion methods.


Terreno's QA/QC program consists of the insertion of at least one certified
reference standard, and one blank sample in every 20 samples. Two CRM, OREAS 50C
and OREAS52C provided by Ore Research & Exploration were used in the QA/QC
procedure. Core duplicates were inserted in selected intersections in order to
check the precision of lab procedure. Core duplicates consist of 1/4 core
samples where the normal half core sample to be submitted for assay is halved
again by Terreno staff at camp and both samples are entered into the sample
stream. Terreno has submitted 29 blank samples, 27 certified reference standards
and 6 field duplicates during the recently completed drilling program. Their
results demonstrate that the blank sample data indicate appropriate and
consistent sample preparation procedures that minimize contamination between
samples, no batch of ALS assays has been rejected and re-run due to CRM failures
and reasonably acceptable variations were found in duplicate results.


The Qualified Person for Terreno's projects is Mr. Peter Mullens, who is a
member of the Australian Institute of Mining and Metallurgy. Mr. Mullens has
reviewed and approved the technical content of this release.


About Terreno Resources

Terreno, meaning "of the earth" in Spanish, represents the Company's focus on
natural resource opportunity development in South America. Terreno has option
agreements on three exploration projects in Argentina; Poposa (formerly referred
to as Amarillo) in San Juan, Socompa and Trigal in Salta. All three projects
boast significant alteration systems and have the potential for copper, gold and
silver mineralization. For more information, please visit
www.terrenoresources.com. 


To view "Figure 1: Drill Plan Map," please visit the following link:
http://media3.marketwire.com/docs/TNO1906_Figure1.pdf.

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