North Richland Montessori - Discovering the Gems Within Welcome to North Richland Hills Montessori!! We are located in the center of four cities – North Richland Hills, Southlake, Colleyville & Keller. Our school offers a comprehensive Montessori Program for toddlers from 1 year of age (who are walking) and continues through the first grade. Nrhmontessori.com~Site InfoWhoisTrace RouteRBL Check