Quaterra Resources Inc.
TSX VENTURE : QTA

Quaterra Resources Inc.

July 10, 2007 08:30 ET

Quaterra Releases Initial Drill Results From Crestones

VANCOUVER, BRITISH COLUMBIA--(Marketwire - July 10, 2007) - Quaterra Resources Inc. (TSX VENTURE:QTA) reported today that an initial six-hole, 3,043-meter core drilling program has been completed at its 100%-owned Crestones property in Durango State, Mexico.

The first drill-holes did not intersect the targeted breccia feeder vents. Subsequent field mapping has identified a series of flat-dipping detachment faults that have offset the outcropping geology an estimated 500 meters to the northeast. The postulated location for the breccia feeder vent(s), based on mapping and drill sections, is southwest of the outcropping breccias in a flat area covered with a thin layer of post-mineral arroyo sediment. An additional 2,000-meter drill program is in progress to test this area.

Says Tom Turner, Quaterra's Manager of Mexican exploration: "We believe that Crestones is a good place to look for an ore deposit. Based on the size and strength of the alteration system and the widespread weak mineralization observed in outcrop and drill core the project merits continued exploration."

Assay results have been received for the first five holes, and contain a few low-grade intercepts as shown in the table below. All three of the hydrothermal breccia types - the silicified limestone, the quartz porphyry, and the hornfels - contain weakly disseminated sphalerite-galena-sulfosalts. The silica breccia commonly contains minor to 5% disseminated pyrite-marcasite and minor to 5% stibnite. The mixed clast and silicified limestone breccias contain disseminated pyrite-marcasite and minor sphalerite-galena. Coarse sphalerite-galena has been observed in fault gouges. Alteration and mineralization appear to intensify to the southwest.



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Table 1: Crestones DDH Assay Summary
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HOLE From To Meters Au ppb Ag g/t Pb% Zn%
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C-02-06 222 224 2 less 30.1
than 5
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235.8 240.4 4.6 less 1.84 0.01 0.48
than 5
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Includes 237.54 237.76 0.22 less 11.2 0.01 3.85
than 5
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512 515.6 3.6 119 52.97 0.74 0.61
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Includes 514.65 515.6 0.95 less 156 2.57 1.71
than 0.05
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C-03-06 56 58 2 less 252.7 0.41 1.22
than 5
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C-04-06 418 420 2 less 5 0.01 0.5
than 5
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431 435 4 407 13.55 0.07 0.3
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Includes 433 435 2 629 22.8 0.13 0.54
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492 504 12 78.16 5.8 0.09 0.62
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Includes 492 502 10 91.8 6.36 0.1 0.72
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362 368 6 less 5.93 0.13 0.4
than 5
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Includes 364 366 2 less 9.8 0.26 0.66
than 5
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Includes
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C-05-07 402 408 6 3.33 5.56 0.02 0.19
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Hole C-01-06 does not contain significant values
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Hole C-06-07, C-07-07 pending assays
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Dr. Thomas Patton is the qualified person responsible for the preparation of this release in accordance with NI-43-101.

Core samples were prepped at Inspectorate's laboratory in Durango, with the pulps analyzed at its main laboratory in Reno, Nevada. Samples were initially run using a 30 element ICP analysis with an aqua regia digestion process. All samples were also analyzed for gold and silver using a 30 gram fire assay with gravimetric finish.

Quaterra Resources Inc. (TSX VENTURE:QTA) is a junior exploration company focused on making significant mineral discoveries in North America. The company uses in-house expertise and its extensive network of consultants, prospectors and industry contacts to identify, acquire and evaluate prospects in mining-friendly jurisdictions with the potential to host large base metal, precious metal or uranium deposits. The company's preference is to acquire a 100% interest in properties on reasonable terms and maintain this interest through initial evaluation.

On behalf of the Board of Directors,

Thomas Patton, President, Quaterra Resources Inc.

Statements contained in this news release that are not historical facts are forward-looking statements as the term is defined in the private securities litigation reform act of 1995. Such forward-looking statements are subject to risks and uncertainties which could cause actual results to differ materially from estimated results. Quaterra relies upon litigation protection for forward looking statements.

We seek safe harbour.

The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of the contents of this news release, which has been prepared by management.

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