In September of 1805, the Lewis & Clark Corps of Discovery struggled to find a trail through the Bitterroot Mountains. Their travelers gave the name to Lost Trail Pass, crossing the Idaho/ Montana border.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.