08-30

Fronteer Development Group Inc. ("Fronteer" or the "Company") (FRG - TSX/NYSE-A) is pleased to announce that recent drilling has strengthened the continuity and expansion potential of the Company's 100%-owned Northumberland deposit.

Mineralization has been extended both at depth and towards the west.

Depth extensions from hole FNU009 include :

• 7.17 grams per tonne (0.209 ounces per ton) over 3 metres (10 feet);
• 6.16 g/t (0.180 oz/t) over 3 metres (10 feet);
• 13.50 g/t (0.394 oz/t) over 1.5 metres (5 feet);
• all within a broader zone averaging 2.73 g/t (0.080 oz/t) over 64 metres (210 feet).

 FNU014, a 152-metre (500 foot) step-out to the southwest, also returned at depth:

• 4.07 g/t (0.119 oz/t) over 1.5 metres (5 feet);
• within a larger zone averaging 1.47 g/t (0.043 oz/t) over 27.4 metres (90 feet).

Of the relatively few historic drill holes that have targeted deep mineralization on the property, many have returned similar encouraging grades, including:

• NW-1103 returned 13.9 g/t (0.405 oz/t) over 7.6 metres (25 feet) at a depth of approximately 518 metres (1,700 feet).
• NN-5 returned 9.15 g/t (0.267 oz/t) over 19.8 metres (65 feet) at a depth of approximately 305 metres (1,000 feet).
• NW-1165 returned 33.9 g/t (0.99 oz/t) over 3.0 metres (10 feet) of at a depth of approximately 914 metres (3,000 feet).

In addition to extending mineralization at depth, Fronteer's 2008 drill program also sought to test new shallow targets peripheral to Northumberland's existing pits. Fronteer intersected mineralization in multiple holes, including:

• 1.70 g/t (0.050 oz/t) over 9.1 metres (30 feet) in FNU003
• 1.52 g/t (0.044 oz/t) over 10.7 metres (35 feet) in FNU002
• 1.49 g/t (0.043 oz/t) over 4.0 metres (13 feet), starting from surface, in FNU004

Gold at Northumberland occurs in a window of prospective lower plate Roberts Mountain stratigraphy, which hosts some of the largest gold deposits in Nevada.  The mineralization occurs in a series of stacked, sediment hosted gold zones that occur over a 2.6 kilometre-long by up to 1.1 kilometre-wide area (1.6 miles x 0.68 miles). Over 1,400 drill holes totaling about 154,000 metres (505,000 feet) have cumulatively established a high confidence level in the integrity of Northumberland's resource.

Northumberland's historical production, taken from small oxide open pits, is estimated at 230,700 ounces gold and 485,000 ounces silver - less than 10% of the current resource. Northumberland's NI 43-101 gold-equivalent resource estimate includes 2.44 million ounces indicated and 815,000 ounces inferred (43,440,000 tonnes averaging 2.17 g/t). The deposit is located entirely on private lands owned 100% by Fronteer.

DRILL HIGHLIGHTS

*Note: The true width of the mineralized zones is estimated to be approximately 70-95% of those stated. Drill composites were calculated using a cut-off of 0.30 g/t. Results less than 1 g/t are not reported here. FNU005-007, 011, 013, 015, 016 and 018 had no reportable assays. Assay results are pending for FNU017.

Northumberland, Long Canyon and Sandman are currently Fronteer's leading properties among its large, portfolio of gold projects in Nevada. For more information on Northumberland and Fronteer's other Nevada projects, visit:  http://www.fronteergroup.com/?q=content/nevada

James Ashton P.E. is designated as a Qualified Person for the Northumberland drill results, with the ability and authority to verify the authenticity of, and validity of, this data. Drill composites were calculated using a cut-off of 0.30 g/t.  Drill intersections are reported as drilled thicknesses. Reverse circulation cuttings were sampled on 5.0 ft. (1.52m) intervals and core was sampled atgeologically selected intervals. All 2008 drill samples were assayed by ALS Chemex (ISO9001:2000) in Reno, Nevada, for gold by Fire Assay of a 30 gram (1 assay ton) charge with an AA finish, or if over 10.0 g/t were re-assayed and completed with a gravimetric finish. For these samples, the gravimetric data were utilized in calculating gold intersections. QA/QC included the insertion of numerous standards and blanks into the sample stream, and the collection of duplicate samples at random intervals within each batch. Selected holes are also analyzed for a 72-element geochemical suite by ICP-MS.

LIQUIDITY
Fronteer is not invested in any short-term commercial paper or asset-backed securities. Fronteer has approximately C$83 million in cash that is fully liquid and held with a large Canadian commercial bank.

ABOUT FRONTEER

Fronteer is an exploration and development company with a track record of making big discoveries. Fronteer has an extensive portfolio of advanced stage gold projects in Nevada, a 40% interest in three gold and copper-gold projects in western Turkey, and a 42.2% interest in Aurora Energy Resources (TSX - AXU), a leading Canadian uranium company.  For further information on Fronteer visit www.fronteergroup.com or contact:

Mark O'Dea, Ph.D, P.Geo President and CEO
Richard Moritz, Director, Investor Relations

Glen Edwards, Director, Communications
Phone 604-632-4677 or Toll Free 1-877-632-4677
info@fronteergroup.com

Christopher Lee, P. Geo, Chief Geoscientist for Fronteer Development Group., is the designated Qualified Person who has prepared the Northumberland resource estimate. Mineral resources have been estimated in accordance with the standards adopted by the Canadian Institute of Mining, Metallurgy and Petroleum ("CIM") Council in November 2003, as amended, and prescribed by the Canadian Securities Administrators' National Instrument 43-101 Standards of Disclosure for Mineral Projects.  The mineral resource estimate is as of May 1, 2008 and was conducted using a combination of Ordinary Kriging (gold) and Inverse-Distance Weighting (silver) grade interpolations within an 'unwrinkled' 3-D block model in Gemcom software. A total of 17,149 assays from 1,119 drill holes (core, RC and rotary drilling) were capped and composited to 10 ft lengths, then separated into high and low grade domains within three distinct mineralized horizons, constrained by hand-digitized, 3-D solids. Each horizon was 'unwrinkled' into a separate flat horizon to facilitate continuous interpolation across variably dipping segments of the deposit, then back-transformed into real space. Densities were based on 295 s.g. measurements and assigned according to lithological proportions in different areas of the deposit and degree of oxidation. Three different resource types were defined in order to reflect the different anticipated costs of extraction for open pit versus underground mining, and heap leach versus sulfide processing. Cut-off grades for each resource type were estimated using cost ranges of existing operations for various parameters, such as mining and processing costs, metal recoveries, general and administrative, sales and refining costs, and an assumed gold price of $700 per ounce. The three different resource types are: open pit oxide and sulfide, based on gold cyanide extraction ratios (oxide resource = cyanide leach assay/fire assay greater than 0.5), and underground, based on depth below surface (2,286-metre elevation, constrained by preliminary internal Lerchs-Grossman pit optimizations). Mineral resources were classified according to: (i) geological confidence, (ii) number of drill holes, and (iii) average distances to samples used in each block estimate. Further details of the estimation procedure are available in the amended and restated NI 43-101 report, posted on SEDAR (www.sedar.com). Detailed resource tables for Fronteer's Nevada projects, including Northumberland, can also be found at: http://www.fronteergroup.com/?q=content/nevada-resource-estimate-tables.

Except for the statements of historical fact contained herein, certain information presented constitutes "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995. Such forward-looking statements, including but not limited to, those with respect to potential expansion of mineralization, potential size of mineralized zone, timing of resource calculation and size of exploration program involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievement of Fronteer to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others, risks related to international operations and joint ventures , the actual results of current exploration activities, conclusions of economic evaluations, uncertainty in the estimation of ore reserves and mineral resources, changes in project parameters as plans continue to be refined, future prices of gold and silver, environmental risks and hazards, increased infrastructure and/or operating costs, labor and employment matters, and government regulation and permitting requirements as well as those factors discussed in the section entitled "Risk Factors" in Fronteer's Annual Information form and Fronteer's latest Form 40-F on file with the United States Securities and Exchange Commission in Washington, D.C. Although Fronteer has attempted to identify important factors that could cause actual results to differ materially, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate as actual results and future events could differ materially from those anticipated in such statements. Fronteer disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Accordingly, readers should not place undue reliance on forward-looking statements.