Montessori Discovery Center Share: Schools Montessori Discovery Center Visit Website 875 Promontory Pl. SE Salem , Oregon 97302 (503) 371-3415 Hours: Monday to Friday 8:00am to 4:30pm About Map About Our school has been providing the best quality care & Montessori education to the children of Salem in a loving environment for over 35 years. We have two campuses ages 2.5 to 12yrs. in south Salem. What's Nearby? Distance: 5 10 15 20 25 50 mi.