Bayfield Clarifies Details of Reported Drill Intercepts

VANCOUVER, BRITISH COLUMBIA--(Marketwire - June 30, 2011) - Bayfield Ventures Corp. (TSX VENTURE:BYV - News;FRANKFURT:B4N - News; the "Company") is issuing this news release as a result of a review by the British Columbia Securities Commission in order to clarify certain details of its technical disclosure of drill results on its Burns Block property and of its disclosure of resource estimates at Rainy River Resources' gold project adjacent to Bayfield's Burns Block.

Rainy River gold properties claims map:http://www.bayfieldventures.com/i/pdf/BYVRRArea.pdf

The Company restates certain drill intervals (listed below) reported in news releases dated September 8, 2010, December 14, 2010, February 16, 2011, and June 27, 2011. The original averaged gold and silver grades over these intervals are all correct and the total amount of gold and silver mineralization is the same; however the drill results are potentially confusing as certain larger intervals were reported by diluting high-grade intercepts over longer intervals of lower grade gold and silver mineralization.

The higher grade gold and silver intervals reported in the effected news releases identified above, and re-reported here, are enclosed within the much wider envelopes of anomalous level gold mineralization (and accompanying variable silver values). We therefore revise the portions of the previously reported intervals for which questions of potential economic viability cannot currently be assessed by Bayfield. Such an assessment would require identifying likely mining methods and establishing many other parameters that are well beyond the scope of our exploration project at this point in time.

The following is a list of the holes that report longer drill intercepts which are being restated:

- Previously reported larger intervals in hole RR10-18 (September 8, 2010 news release)

- Previously reported larger intervals in hole RR10-52 (December 14, 2010 news release)

- Previously reported larger intervals in hole RR11-1 (February 16, 2011 news release)

- Previously reported larger intervals in hole RR11-70 (June 27, 2011 news release)

- Previously reported larger intervals in hole RR11-71 (June 27, 2011 news release)

Restated Gold and Silver Assay Results from Hole RR10-18:

    -------------------------------------------------------------------
       HOLE   FROM (m) TO (m) INTERVAL (m) Au (g/t) Ag (g/t) AuEq (g/t)
    -------------------------------------------------------------------
     RR11-18   173.00  178.00     5.00       0.83     0.82      0.84   
    -------------------------------------------------------------------
               489.00  491.00     2.00       2.45     25.30     2.90   
    -------------------------------------------------------------------
               497.00  507.00     10.00      35.93   359.65     42.35  
    -------------------------------------------------------------------
    including  498.00  499.00     1.00       63.90   1760.00    95.33  
    -------------------------------------------------------------------
       and     499.00  500.00     1.00      109.00    96.10    110.72  
    -------------------------------------------------------------------
       and     503.00  504.00     1.00       90.30   881.00    106.03  
    -------------------------------------------------------------------
               542.00  563.00     21.00      1.24     42.77     2.00   
    -------------------------------------------------------------------
    including  545.00  546.00     1.00       15.60   719.00     28.44  
    -------------------------------------------------------------------

(i) g/t = grams per metric tonne

(i) AuEq (g/t) values calculated at a 56 to 1 (gold price vs. silver price) ratio and metallurgical recoveries and net smelter returns are assumed to be 100%

Restated Gold Assay Results from Hole RR10-52:

               ---------------------------------------------
                 HOLE  FROM (m) TO (m) INTERVAL (m) Au (g/t)
               ---------------------------------------------
               RR10-52  402.40  403.50     1.10       89.96 
               ---------------------------------------------

(i) g/t = grams per metric tonne

Restated Gold and Silver Assay Results from Hole RR11-1:

    -------------------------------------------------------------------
       HOLE   FROM (m) TO (m) INTERVAL (m) Au (g/t) Ag (g/t) AuEq (g/t)
    -------------------------------------------------------------------
      RR11-1   509.50  510.20     0.70       21.60    21.00     22.07  
    -------------------------------------------------------------------
               550.75  561.70     10.95      1.71     78.36     3.45   
    -------------------------------------------------------------------
    including  559.90  561.70     1.80       5.70    282.11     11.97  
    -------------------------------------------------------------------
               617.85  627.00     9.15       8.37     40.57     9.27   
    -------------------------------------------------------------------
    including  623.90  626.10     2.20       33.13   208.18     37.76  
    -------------------------------------------------------------------

(i) g/t = grams per metric tonne

(i) AuEq (g/t) values calculated at a 45 to 1 (gold price vs. silver price) ratio and metallurgical recoveries and net smelter returns are assumed to be 100%

Restated Gold and Silver Assay Results from Holes RR11-70 and RR11-71:

    --------------------------------------------------------------------
    DRILL HOLE FROM (m) TO (m) INTERVAL (m) Au (g/t) Ag (g/t) AuEq (g/t)
    --------------------------------------------------------------------
      RR11-70    33.50   59.00     25.50      1.42     44.24     2.47   
     including   41.00   50.00     9.00       3.25     96.34     5.54   
     including   45.00   46.00     1.00       17.90   511.00     30.07  
                 74.00   84.80     10.80      0.87     13.02     1.18   
     including   81.40   82.80     1.40       4.20     61.10     5.65   
    --------------------------------------------------------------------
      RR11-71    38.00   63.50     25.50      26.70   170.69     30.77  
     including   46.00   61.00     15.00      45.24   281.03     51.93  
        and      47.80   59.00     11.20      60.05   362.96     68.69  
    --------------------------------------------------------------------

(i) g/t = grams per metric tonne

(i) AuEq (g/t) values calculated at a 42 to 1 (gold price vs. silver price) ratio and metallurgical recoveries and net smelter returns are assumed to be 100%

The new very high grade intercept in RR11-71 lies within a broad halo of anomalous to multi-gram level gold and silver mineralization that is contained within the well established east-west trending zone of strong foliation, sericite alteration, locally intense deformation and highly variable pyrite mineralization. This pattern of high grade zones lying within lower grade mineralized halos has been seen at the Burns Block many times during the continuing exploration and delineation drill program there.

Updated Burns Block drilling exploration map:http://www.bayfieldventures.com/i/maps/BYV_Burns_Exploration_Map_July_2010.jpg

Bayfield also clarifies certain details of its technical disclosure of resource estimates at the adjacent Rainy River Gold Project. On Bayfield's website, investor relations material, corporate presentation, and certain news releases, the Company discloses resource estimates for an adjacent property that are contrary to NI 43-101 because the disclosure:

a) adds inferred mineral resources to other categories, contrary to section 2.2(c).

b) reports resources solely in the form of contained metal content, contrary to sections 2.2(d) and 3.4(b).

Bayfield has amended its disclosure and removed any non-compliant resource estimates for adjacent properties.