MACKINAC ISLAND (AP) — An investigation reveals a man found dead at the base of a popular Mackinac Island tourist destination intentionally jumped from the top and left a note indicating plans to take his own life, police said.

A passerby found the man’s body about 9:15 a.m. Wednesday at the base of Arch Rock, Mackinac Island Police Chief Doug Topolski said Thursday.

Arch Rock is a natural limestone arch that rises 146 feet above the Lake Huron shore. Climbing on it is strictly prohibited; viewing platforms are available.

The name of the man, an Upper Peninsula resident in his 40s, wasn’t released.

Dominick Miller, marketing director for Mackinac State Historic Parks, said he could not recall anyone falling to their death at Arch Rock during his decade-long tenure on the island.

“We’re very sad and disheartened to get this news,” Miller said.