As of Jan.18/2011, unfortunately the sign of Hoosier Hill has been stolen, on the top there is now a 'mail box' on the ground with Hoosier Hill postercards, climber log and pens in sealed plastic bags. Also a Timex watch left by a hiker.
In addition, the sign for short off-road trail on Elliot road has been stolen, so you couln't tell when to stop to follow the short trail to the summit. It is about immediately when you turn to the gravel road and see an open field to your right.
I visited on 8/6/15. There is now a green sign by the short access road, but it is obscured by low hanging branches. I recommend you scout the area on Google Earth in advance so you'll know where to look. Once you've parked, walk 10 yards down the access road and look into the woods on your right. You'll see the high point installation, which is quite nice.