Port Arthur Stadium is used exclusively for baseball and is home to the Thunder Bay Border Cats of the Northwoods League. From 1993 to 1998, the stadium was also home to the Thunder Bay Whiskey Jacks of the Northern Professional League. The Port Arthur Stadium was constructed in 1951.

Sport technical information:
The infield and the outfield are natural grass
Locker rooms
Scoreboard
Washroom facilities
Lighting
Permanent batting cage
Portable batting cage
Bullpens
Warm up areas
Field Dimensions
Left field - 330'
Right field - 330'
Centre field - 400'
Outfield fence height - 8'

Audience information:
Seating capacity - 5,400-seat outdoor
Barrier free access throughout
Parking is available
Concession Area
Other: Press Box

Major events and championships hosted:
2004 Baseball Canada Cup
Three Nations Cup
Gore Motors Honda Nations Cup
It has hosted many international, national and provincial championships