Delft Island colonial horse stables (Stables of Nolan): coral-limestone arches and feeding troughs?

The historic horse stables on Delft Island were established by British cavalry officer Lieutenant Edward Nolan in the 1810s to breed riding horses for colonial military regiments. Constructed entirely from massive blocks of local fossilized coral limestone and shell-lime mortar, the complex features a long rectangular courtyard enclosed by high coral-rag walls. Surviving masonry includes heavy coral-stone mounting blocks, stone tie-posts with carved hitching holes, and long continuous drinking and grain feeding troughs carved directly from monolithic limestone slabs that have resisted maritime salt weathering for two centuries.