SEYMOUR EXPLORATION CORP.
8th floor, 700 West Georgia St.
Vancouver, British Columbia  V7Y 1H4
(the "Company")

NEWS RELEASE

September 19, 2005

Seymour Exploration Announces 6.4 Million Ton Resource Grading 0.85% Nickel at the Lynn Lake Mine Property

Sudbury, Ontario – September 19, 2005 – Seymour Exploration Corp. (TSX-V: SEZ) announced today that it has received the executive summary of a resource calculation for its Lynn Lake Nickel Mine Property produced by Wardrop Engineering Inc. of Toronto.

The highlights of the resource are as follows:

• 6.4 million tons grading 0.85% nickel and 0.39% copper in the measured and indicated resource category.

In addition to establishing the resource, the engineering study identified:

• Fifteen high priority target areas located adjacent to the mine workings, and
• Additional areas within the mine environment that remain completely untested

Commenting on the resource calculation, Richard Murphy President and CEO of Seymour Exploration stated “the fact that the majority of our resource is categorized as measured and indicated will allow us to initiate exploration specifically designed to define entirely new areas of mineralization. We have identified fifteen first priority target areas adjacent to mine workings; all fifteen of these targets have been identified by widely spaced drilling by the original mine operators. In addition, there are areas within the host intrusion that have seen no previous work and remain completely untested.”

“The grades of the resource that we have defined so far are comparable to the grades at which the ores in the host intrusion were profitably mined for over two decades. The Lynn Lake Nickel Mine was operated for 24 years continuously from 1953 to 1976.”

“Our efforts will now shift to economic evaluation and exploration. The Company will initiate a scoping study to determine the economic potential of re-opening the mine. This study will identify the approximate costs and establish the resource thresholds required to advance to the feasibility stage. In addition to the scoping study, the Company will initiate the first phase of its planned exploration program designed to test the first of the highest priority exploration targets.”

The Lynn Lake resource is located in three discrete zones within the host intrusion as detailed in the following table:

The resource figures tabulated above were determined using a cutoff of 0.8% nickel equivalent cutoff, where nickel equivalent = nickel % + (copper % divided by 5).
The resources tabulated above are contained within a broader zone of mineralization summarized in the following table:

The resource figures tabulated above were determined using a cutoff of 0.7% nickel equivalent cutoff, where nickel equivalent = nickel % + (copper % divided by 5).
In estimating the mineral resource to confirm historical reserve and resource calculations, a mineralization envelope of greater than 0.3% nickel equivalent (NIEQ, where NIEQ=Ni% + Cu%/5) was interpreted. This was based on the average nickel price during the past three years of $5.00 US per lb. and copper price of $1.00 US per lb.

Resource block models were generated from the mineralized envelope using the following calculation methods:

• nearest neighbour (NN), inverse distance squared (ID2) and ordinary kriging (OK) for the N and O Zones
• NN and ID2 calculated for G Zone.

Search parameters and block dimensions used in the resource block model are reported in Table 1. Results from the OK estimation for the N and O Zones and ID2 for the G Zone are used for the resource tabulation.

Table 1: Block model search parameter distances and block size dimensions.

Resource category classifications were determined for the N and O Zones as follows:

• Measured resources are one block distance from mined out areas,
• Indicated resources are blocks less than 37.5 ft from a drill hole composite
• Inferred resources are blocks greater than 37.5 ft from a drill hole composite.

The G Zone is classified as an Inferred resource. These resource categories have been determined in accordance with CIM guidelines.

The resource calculation which is effective as of today, was performed by Wardrop Engineering Inc., an independent consulting firm. The qualified persons (as described under National Instrument 43-101) responsible for the resource calculation and the technical content of this press release are Tim Maunula, P.Geo and Rob Carter, P.Eng.
Seymour Exploration Corp.’s objective is to determine the economics of reopening the Lynn Lake nickel mine while adding to the existing mineral resource through exploration.

FOR FURTHER INFORMATION PLEASE CONTACT:

Seymour Exploration Corp.
Richard Murphy, President and CEO
Tel: (705) 698-1962

Email: info@seymourexploration.com

The Company is not aware of any environmental, permitting, legal, title, taxation, sociopolitical or marketing issues that would materially affect the resource. Mineral resources are not mineral reserves and, therefore do not have demonstrated economic viability.

This document may contain forward-looking statements relating to Seymour Exploration Corporation’s operations or to the environment in which it operates. Such statements are based on operations, estimates, forecasts and projections. They are not guarantees of future performance and involve risks and uncertainties that are difficult to predict and may be beyond Seymour’s control. A number of important factors could cause actual outcomes and results to differ materially from those expressed in forward-looking statements, including those set forth in other public filings. In addition, such statements relate to the date on which they are made. Consequently, undue reliance should not be placed on such forward-looking statements. Seymour disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, save and except as may be required by applicable securities laws.

THE TSX VENTURE EXCHANGE HAS NOT REVIEWED AND DOES NOT ACCEPT RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THE CONTENT OF THIS NEWS RELEASE.