Hippie has a new ride

[BlackWood]

Hey guys, sorry to hijack your thread but I have question about a bike frame a family friend gave my parents. The bike frame says TREK, are these any good? If it is are they worth restoring? I have little knowledge of bikes, other than the Mongoose bmx bike I used to ride back in highschool. I don't know if it's a mountain bike or onroad bike. I'll try to get some pics of the frame.