Hiking to the Eternal flame in Chestnut Ridge Park is very popular. You can get more detailed information at this link: Eternal Flame Falls – Chestnut Ridge Park, Orchard Park, NY.
However, the Erie County Sheriff and the Erie County Parks Department want to end parking at the trail head on Seurfert Road. Instead, hikers should park at the Corral Parking area off Route 277. that parking area is just north of the the intersection of Seufert Road and Rout 277.
Below is a picture of the Corral Parking area approaching it from the north on Route 277 along with a topographical map and aerial map showing the park trails and the parking area. You can also view a Google map of the same at this link: GOOGLE MAP OF CHESTNUT RIDGE PARK TRAILS