Arizona State or Colorado School of Mines for internships?

For internships specifically, Arizona State has the edge overall because of its scale, metro location, and breadth of employer access.

Location is a major differentiator. ASU students can pursue internships during the school year more easily because Phoenix has a dense concentration of engineering employers nearby. That matters if you want part-time work during semesters, not just summer internships.

Colorado School of Mines is excellent too, especially if your interests lean toward petroleum, mining, metallurgy, geological engineering, renewable energy, or certain mechanical and civil niches.

The tradeoff is that Mines is narrower. If you want the widest range of internship options across engineering disciplines, ASU offers more volume and more industry diversity. If you already know you want an industry where Mines is especially well connected, then Mines can be just as strong or even better in that lane.