MacDonald Mines Engages VMS-Nickel-Copper-PGE Expert for Ring of Fire Properties

TORONTO, ONTARIO--(Marketwire - June 2, 2010) - MacDonald Mines Exploration 
(TSX VENTURE:BMK) ("MacDonald" or "the Company") announces that it has 
engaged the services of Dr. C. Tucker Barrie, Ph.D., P. Geo., of C. T. 
Barrie and Associates, Inc. of Ottawa, Ontario.

Dr. Barrie is a consulting economic geologist with over twenty-five years 
of experience in polymetallic magmatic and hydrothermal ore deposits, 
geochemistry, petrology and mineralogy.

He has worked on a variety of hydrothermal and magmatic mineral deposit 
types and their host rocks, including volcanogenic massive sulphide, 
porphyry copper-gold, magmatic Ni-Cu sulphide, and magmatic PGE deposits.

Dr. Barrie will be following up on his internal MacDonald Mines report of 
2005, focusing specifically on the Company's McNugget Property which was 
recently confirmed to host new volcanogenic massive sulphide (VMS) 
mineralization of substance. 

Quentin Yarie. P.Geo., MacDonald Mines' Vice President of Exploration 
stated, "We are very pleased to have retained Tucker Barrie as one of our 
consultants for the McFaulds Lake Project. His extensive experience in 
similar camps (Kidd Creek Mines/ Falconbridge/ Noranda) will be a great 
addition to the MacDonald Mines' technical team." 

Quentin Yarie and Dr. Barrie will be at MacDonald Mines' Butler Lake camp 
on June 14th, 2010 to inspect the core from the spring 2010 drill program. 
Dr. Barrie, in conjunction with the Company's lead consultants, Dr. Larry 
Hulbert and Hadyn Butler, P. Geo, will provide recommendations on the 
second phase of drilling that is to begin later this spring.

Dr. Barrie has authored or co-authored 40 papers in refereed journals, and 
over 60 Qualifying reports, abstracts, and maps on these and other topics. 
Recently, he co-edited a S.E.G. Reviews Volume: "Volcanic-Associated 
Massive Sulphide Deposits: Processes and Examples in Modern and Ancient 
Settings" and S.E.G. Monograph 10: "The Giant Kidd Creek Volcanogenic 
Massive Sulphide Deposit, Western Abitibi Sub province, Canada". He is a 
Fellow of the Society of Economic Geologists, and an Adjunct Professor at 
the University of Windsor and Laurentian University.