Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: A Boy Scout camping in northern New Mexico died after being swept away by flood waters in the North Ponil Canyon early on Saturday morning. The flash flood hit unexpectedly in the middle of the night, around 4:30am near the Philmont Scout Ranch. 12 Scouts were in the middle of a 12-day trek across the ranch. Eight of the Boy Scouts were between 14 and 17 years old. A Scout Ranger and three adult Crew Leaders made up the rest of the team. State Police spokesman Chad Pierce told the Alberquerque Journal: 'As the floodwater swept through the canyon, it overran the Scouts' campsite, resulting in four Boy Scouts being swept away.'12 Scouts were taking part in a 12-day trek across the 214 square mile Philmont Scout RanchFlash flood occurred at around 4.30 a.m.Three of the Scouts were found by members of staff, but the fourth wasn't found until mid-morning 
 Question:20,000 Scouts a year visit _ for backpacking treks, training and other programs.

Philmont Scout Ranch