Whether it’s because of the weather or because you live in a flat area, sometimes an outdoor hill run just isn’t possible.
Recently, once a week I have tried to incorporate hills into my run, and usually it’s been on the treadmill. I like hills on the treadmill because you can control the incline. Below you will find my own hill workout I’ve created, which usually amounts to 3 miles. If you do a shorter warm-up or cut the 3 minute break into less time, it will be less miles (obviously).
Since I’m just starting half-marathon training, these are different than hill sprints. I am not doing hill sprints. These are simply running at an incline at a normal pace. I do not change my pace on the treadmill while doing these. Hill sprints are great but once you have built up a running base. So, if my running pace that day is 10 minutes per mile (or 6.0 speed) that’s the speed I keep it at the whole time…unless of course I want to walking break 
Let me know if you decide to try this workout on your next treadmill run! I love it…it helps pass the time and make the dreadmill not so boring 
How do you make the treadmill less boring? Any sort of interval workout works for me. I cannot run at a steady pace and not be bored out of my mind!
I need a clarification: The jog/walk intervals, are they done at 0% incline or do you keep the incline where it was?
I set it back to 0 for the walk intervals. Let me know if you try it!