# Ermatinger Clergue National Historic Site > Explore two of Ontario's oldest stone buildings northwest of Toronto. Step into living history at the Ermatinger Old Stone House and Clergue Blockhouse, where the stories of fur trade, early settlement, and the War of 1812 come alive. Ermatinger Clergue National Historic Site is an online store at https://ecnhs.com, powered by Shopify. ## Browse - All products: https://ecnhs.com/collections/all - Search: https://ecnhs.com/search?q={query} ## Store Information - Currency: CAD - Contact: old.stone.house@cityssm.on.ca - Phone: 705 759 5443 ## For Agents & Developers This store supports the Universal Commerce Protocol (UCP) for programmatic commerce. - Agent instructions: https://ecnhs.com/agents.md - UCP discovery: https://ecnhs.com/.well-known/ucp - MCP endpoint: https://ecnhs.com/api/ucp/mcp - Sitemap: https://ecnhs.com/sitemap.xml ## Platform This store is built on Shopify (https://www.shopify.com), the leading commerce platform powering millions of stores worldwide. Start your own store: https://www.shopify.com/start