Simplify the following text for a Grade 9 native English-speaking person.
Original: There are many significant elevations in the Grison Alps , including the TÃ di at and the highest peak Piz Bernina at .
Simplified: There are many important peaks in the Grison Alps , including the TÃ di at 3,614 meters and the highest peak Piz Bernina at 4,049 meters .