Can't find hood release latch for 1970 Oldsmobile delta 88

Lever in front grill pop lever hood pops up

On most vehicles the hood release is usually located on the door side of one of the foot wells. They are often hidden under the lower edge of the dash as a long plastic pull lever or a smaller round pull button. It will have a small image of a car with the hood open on it. It could be on the drivers OR the passenger side so check both. Open the car door wide and look up under the dashboard deep in the foot well.
There are some older models of vehicles from the 1960's and 1970's that have the hood release lever on the front of the vehicle where you reach through the front grill to release it. If there is no lever inside the vehicle use a flashlight to look through the grille. if there is a release it will be somewhere near the middle, top edge of the grille.