<p>Foreign languages would seem to be one of those mainstream areas. I believe SUNY-Albany discontinued their programs in Classics, French, Italian, and Russian. </p>
<p>Even USC, which has pretensions to be a great university, dropped its German major. At other universities, some language departments have been consolidated. So you’ll often find German and Russian joined in a single department, whereas previously they were in separate departments. Most of these seem to be cost-cutting measures, perhaps due to a limited number of students majoring in certain languages. In the Montana State example you cited, it might be that MSU simply doesn’t enroll enough students who qualify to major in math (or, their students tend to major in more vocational, direct application fields), rather than trying to cut costs.</p>