Amtrak’s Adirondack Line will be closed north of Saratoga Springs from May 20 through June 29.

Passengers who already bought tickets were told this week. Right now, there is no explanation on Amtrak’s website as to why the closure is happening.

When you try to book a ticket, an alert says “we do not have any services between the cities entered on the date you selected, please try a different date.”