If they were looking for just hella painful, there’s a road near school which is 900 feet gain in .9miles… Yay Repeats.!
What road is that? You ever done Fiddler’s Elbow?
How does that compare to Iron Bridge? A few of my friends did Iron Bridge repeats training for Mt. Washington (I was glad I was smart enough not to bring my tri-bike the first time I went with them).
Fiddler’s Elbow is steeper at it’s steepest. Plus, you have to climb a hill to get to it in the first place. It may be longer, too.