Ottawa has a major boulder supply depot – Landscape Depot.  We specialize in boulders of all shapes, sizes, mineral content and colour.  Boulders are used widely as the building blocks for retaining walls.  They are also used simply to beautify the property, as the focal point to a floral/fauna display or as a component to a waterfall.  Worried about delivery?  We can bring them from our place to yours.  We have heavy duty flatbed trucks and forklift machines available to you.  All boulders carry a lifetime warranty.