The last stop on our trip was Missouri's Taum Sauk.
The trail is actually very short along a very nicely prepared path, and this is one of few highpoints that specifically brags about it's wheel chair accessibility.
The area is not much more than an hour from St Louis and even closer to the Mississippi river. The highpoint has a plaque on the ground and a boulder marking the spot which I made sure to climb for the feeling that at least a minor effort was exerted during the peak bagging...
Stats:
State: Missouri
High point: Taum Sauk
Elevation: 1 772 ft (540 m)
Date: November 27, 2011
Total elevation to date: 177 933 ft (54 234 m)
Access: Drive-up, short walk, handicap access
Difficulty rating (of 10): 1
Potential Difficulties: Essentially none, except that the look-out tower is not located at the high point but rather a couple of miles away.