The 1970 Lamar Tech Cardinals football team represented Lamar State College of Technology—now known as Lamar University—as a member of the Southland Conference during the 1970 NCAA College Division football season. Led by eighth-year head coach Vernon Glass, the Cardinals compiled an overall record of 3–7 with a mark of 1–3 in conference play, placing fourth in the Southland. Lamar Tech played home games at Cardinal Stadium in Beaumont, Texas.
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