Yep, I beleive, I believe!
I did believe the signs. That is, my LEGS believed! I don't have a map in front of me, but we took a long climb from the southeast tha went almost directly north the entire way to the top -- went through a small town down low called, maybe, Spiazza? No, not that, but close. So, we were on the east side of the peak as we rode the entire time. There were several stretches of 15 percent, then we thought we had hit the top as it flattened, only to run into the 20 percent section. It was only a few hundred meters, but it was stiff! The funny part: I was pushing hard to get through the section, then looked down at the conclusion to find that I had one more gear to go and didn't use it. Delirium!
The coolest part maybe? The downhill bomb to Avio through what was possibly the most spectacular cut through cliffs I've ever ridden.
Nice loop back to the car south along the (Adige?) river.