You ladies put on some MILES! 
My "long" rides on the weekend are 20-30 miles, and my weeknight rides are 15-20.
I did 25 miles on the trail yesterday and it was a PERFECT biking weather day. If not for a packed day, leaving very little time in my schedule I definitely would have went further. I am such a newbie. 
My biggest problem with rides over 2 hours is my back ends up killing me. I think I am going to try and move my seat down a little and see if that helps.
Jill
2014 Cannondale Quick 4 "Lou"