You will be given a definition of a task first, then some input of the task.
Write an inquisitive question about a specific text span in a given sentence such that the answer is not in the text.

Sentence: The National Park Service announced this week that Mount Baldy will remain closed indefinitely due to the discovery of two new holes and a number of depressions on the north side slope , though the rest of the Indiana Dunes National Lakeshore will be open .<sep>Span: closed indefinitely
Output:
Why are they going to close the whole mountain indefinitely?