Here's a summary of Antoine Mountain in 50-100 words: Antoine Mountain is a downhill ski resort located in Mattawa, Ontario, Canada. It boasts the longest ski run in Ontario, stretching 2.9 kilometers. The resort features 15 trails, a vertical drop of 630 feet, and a main chalet, rental building, and Canadian Ski Patrol quarters. With 11 kilometers of slopes and 2 lifts, Antoine Mountain offers a range of skiing and snowboarding opportunities. The resort is open from December 27th, 2024, and is known for its excellent staff and personable service.