Historical Seasonal Opening and Closing Dates. TrailsThe only trails that are routinely closed in Yosemite are the Mist Trail to Vernal Fall, the John Muir Trail between Clark Point and near the top of Nevada Fall (including the 'ice cut'), and the Four Mile Trail.Table shows the date range each trail was open for each year since 2000YearMist TrailJohn Muir Trail (ice cut)Half Dome CablesFour Mile Trail.