From the list of Montessori Schools registered with the Montessori Schools Association and listed on the Montessori St Nicholas Charity website, with a little text processing, and the help of Google Fusion Tables, I created the below map of Montessori Schools.
Each node on the map is clickable, and provides a link to more details from the above site, as well as whether the school has acheived any accreditation from MSA.
