Proving Grounds
- Episode aired Jan 8, 2001
- TV-PG
A look at various proving grounds including the historic Packard Automotive proving ground in Michigan and the Colorado springs U.S. Olympic training facility. Two army proving grounds for e... Read allA look at various proving grounds including the historic Packard Automotive proving ground in Michigan and the Colorado springs U.S. Olympic training facility. Two army proving grounds for extreme weather in Alaska and Arizona are also featured.A look at various proving grounds including the historic Packard Automotive proving ground in Michigan and the Colorado springs U.S. Olympic training facility. Two army proving grounds for extreme weather in Alaska and Arizona are also featured.