When I was a boy, Indian Hills Community College was known as Ottumwa Heights College. It was a private college run by The Sisters of Humility of Mary. The nuns would often chase me, my friend Tony, and my little brother off as we caught turtles, bullfrogs, and crawdads at what we referred to as Heights' Pond.
Now IHCC is a public community college and the home of several geocaches. The nuns are gone and you can roam the grounds at will and even play some rounds of disc golf without being hassled.
There is guest parking provided at the college, but nothing very close to GZ. The muggle threat is high, but you can always tell the curious that you are looking for a lost golf disc.
For the FTF, there is an antique publication (1951) of some poems by Shelley and Keats. It's a cool little book, and I thought it appropriate as fodder for a cache hidden near an institution of higher learning.
A pencil is provided, but I recommend to BYOP, just to be safe.
Congratulations to GeoVampires and Howard for FTF!