How Many 14ers Are There?

For my measurement I use the official WYCO Drive Elementary 5th Grade, or WDE5G, Colorado State History standard where I first learned that there are 54 mountains above 14,000 feet in Colorado. Fiftyfour is what I learned and I'm sticking to it unless either one of two things happen:

1. A once recognized WDE5G 14er is later determined to fall shorter than 14,000 feet. How likely is a mountain to loose altitude you might ask? Mount St. Helens' summit was at 9,677 feet above sea level before she erupted in 1980. Presently the summit is 8,364 feet. Okay, Colorado does not have a lot of volcanic activity but the altitudes of Mounts Yale (14,196) and Mount Princeton (14,197) have, unofficially, fluctuated. Most likely from Alumni from the namesake colleges stacking or throwing rocks from the summits in order to gain stature to their respected colleges.
2. Advancements in measuring altitude determine that a once non-recognized WDE5G mountain is now 14,000 feet or greater. This happens more frequently than you think. Only until recently Mount Everest's summit, and the highest point on Earth, was recognized at 29,028 feet above sea level. However, due to satellite measuring advancements, her newly accepted and recognized altitude (also recognized by the WDE5G) is 29,035. a difference of 7 feet!