Beast of Blood (1971)
A ship carrying Dr. Bill Foster (John Ashley), Sheila Willard, her father and Carlos Lopez explodes and sinks after Don Ramon Lopez (the titular "beast") is found on board and goes on a rampage. Don Ramon washes up on Blood Island and heads to the jungle. Dr. Foster was the only other survivor, and after a few months, he heads back to the island on another ship. On board is reporter Myra Russell (Celeste Yarnall), who is looking for the story about the explosion.
When Foster and Russell arrive on the island, they find the natives in a state of fear, believing that the old Lopez mansion is cursed. With the village head man Ramu (Alfonso Carvajal) and the ship's captain (Beverly Miller), they search the house and find Razak (Bruno Punzalan) alive. The "green men" return and after a fight, Myra is captured and taken to evil Dr. Lorca (Eddie Garcia), who is alive but horribly scarred.
Dr. Foster and Laida (Liza Belmonte) search the mountains and find Dr. Lorca's headquarters. Laida goes back to the village for help and Lorca shows Foster his latest experiments. He has removed Don Ramon's head and has attached it to machines while the body remains strapped to a table. Lorca knows the head can speak but it refuses to.
The captain, Laida and Ramu lead an attack on Lorca's headquarters and fight his men. Laida finds her father, who shows signs of the chlorophyll effects, and rescues him. Foster shoots Razak. Don Ramon's head controls his body and wills it to attack and apparently kill Dr. Lorca. Lorca's lab explodes, killing all inside, and Foster and the group leave with a box of Lorca's papers.
Directed by: Eddie Romero
Starring: John Ashley, Celeste Yarnall, Eddie Garcia
https://en.wikipedia.org/wiki/Beast_of_Blood_%28film%29
Sleepy Hollow is a State Park, so either a Michigan DNR Recreation Passport or a small fee is required to enter the park in a motor vehicle.
Please also be aware that hunting is allowed in this park certain times of the year, so please be careful and dress appropriately when hunting is allowed.