W.S. Mount Elementary School

Address: 50 Dean Lane, Stony Brook NY 11790
Main Office: (631) 730-4300
Fax: (631) 730-4313
Principal: Merrilleen Heidrich
Asst. Principal: Sarah Kiersh
School Hours: 9:25a.m.-3:40p.m.

Exterior photo of WS Mount school building

Important Phone Numbers

Attendance & Health Office: (631) 730-4310 / Email: mountnurse@3villagecsd.org
Transportation Office: (631) 730-5070 / Fax: (631) 730-5095

School Updates

Start with Hello Spirit Week Flyer
Open House Letter - September 14, 2022
Principal’s Welcome Message
Teacher Welcome Letters 2022
Grade-Level School Supply Lists
Mount Elementary Art Show 2022

Important Links

Clubs
Directions
Email Directory
Library
MySchoolBucks
PTA
Site Based Shared Decision Making Team

Forms

Parent Auth. for Bus Stop Release (K-2)

Policies & Procedures

Arrival & Dismissal
Building Security Information
Student Handbook

Current News

View News »

Backpack

WSM - September New!

Events

Sep 26–27
Rosh Hashanah - Schools Closed

Oct 05
Yom Kippur - Schools Closed

Oct 10
Columbus Day- Schools Closed

Oct 12–14
Mount Fall Book Fair

Oct 17–18
Mount Picture Day