wiki to the rescue again!
Forbidden ForestThe Forbidden Forest is a large, dark forest to the east of Hogwarts Castle. It is usually referred to simply as "the Forest". It is strictly forbidden to all students, except during Care of Magical Creatures lessons and, on rare occasions, detentions.
Among the plant species within the Forest are trees such as beech, oak, pine, sycamore and yew, as well as undergrowth including knotgrass and thorns. Though the Forest is vastly dense and wild, there are a few paths and clearings. These are mostly made by Rubeus Hagrid, who frequently travels into the Forest for various reasons. The Forest is also home to an assortment of creatures. The following is an (incomplete) list of beasts that inhabit the forest: [2]
A herd of at least 50 centaurs, including Bane, Magorian, Ronan and formerly Firenze.
Werewolves, according to Draco Malfoy and Argus Filch.
A colony of Acromantulas, the late Aragog and his family.
Trolls, according to Tom Riddle.
Unicorns
Thestrals
Bowtruckles
Fluffy, a three-headed dog who was released into the forest after the events of book one.[3]
Though not technically a beast, there is a much damaged turquoise Ford Anglia, formerly owned by Arthur Weasley that had been bewitched with the ability to fly, but took on a mind of its own after Harry and Ron Weasley crashed it into the Whomping Willow. It fled into the Forest, never to be seen again except on one occasion in which it helped Ron and Harry escape from a hungry bunch of giant spiders. J.K.rowling stated in an interview that the flying car is set to make a return in the seventh and final book in the series, Harry Potter and the Deathly Hallows
Grawp, a "small" giant, lived in the Forest during book five. Albus Dumbledore later arranged for him to move up to the mountains surrounding Hogwarts and live in a big cave, where he is "much happier than he was in the Forest".
http://en.wikipedia.org/wiki/Hogwarts_layout*******************************************
the one i mentioned is in Bolton Township, north of Bolton Landing in Warren COunty; i found it once on mapquest but it's a very small road and now i've lost it