Hey ZENKI1, I am in luck I am surrounded by steep-hills within a 25-mile radius of the home.
I am also in luck, back in Highschool I was on the cross-country team. In that respect I have the capability to torture myself with long runs that exceed 8-miles.
I plan on buying a 40-pound vest sooner or later, this will be brutal but I remember as a runner my legs were incrediably strong.
Honestly I hate running lol.. Thats why I sprint hills .. Its like cheating my runs lol..