Ya, it's pretty much corn except for Indy, Fort Wayne, and Gary. There are walking trails in Fort Wayne at several of the different parks, and there is the River Greenway, but they are not really hiking more walking with 8ft wide paved surfaces not sure of length, river greenway is suppose to be like 50-60mi when it is completed, it was started in the 70's or 80's and its Indiana(we do things slower) so I'm not sure how much of it is done, prolly 15 miles or so. Here is a link to the fort wayne parks dept, check out rivergreenway, or some of the other trails and parks I'm too lazy to look
http://www.fortwayneparks.org/...Pathsand cityhttp://
www.fortwayne.com/mld/fortwayne/
If you want real nature stuff, close by I've been to salamonie resivior and it had some decsent hiking trails I think they were 10+ miles, but I don't know for sure, its more of a campground
Pokagon state park is about 35 minutes north of fort wayne and is quite popular and is scenic (at least for indiana) I'm not a hiker though so I don't know the length, I would guess under 5-6 mi here is a linkhttp://
www.indianaaudubon.org/...n.htmAlot of people go to Brown county, but I don't remember very many trails, you may have to head down to southern Indiana by the ohio river or up into michigan to get the kind of trails that you are looking for, we used to ride dirt bikes on 40-60 mi trails around cadiliac mich, I don't remeber what all was up there though, I belive there was hiking trails that were about that lengthLike I said before I'm not really a hiker, I've gone on trails before in many of the parks throughout the state, but they are ususally under 2mi, so I wouldn't know what is good and what isn't
And since your going to Fort Wayne and are into cars you should visit the Auburn Cord Duesenbug museum, cool stuff you'll never see anywhere else.Good luck, and if you ever come to Fort Wayne again(I'll be stuck at Purdue this weeken) look me up.