Prominence Peaks

The state of Utah has 81 prominence peaks that have at least 2000 feet of prominence. Bob Bolton described it best when he stated "Topographic prominence allows all mountains to be measured on a level playing field. It measures how far a mountain rises above the highest saddle (its "key saddle") that connects the peak to a higher peak. Another way to think of prominence is to imagine water rising around a peak. As the water rises to the elevation of the key saddle, the mountain's summit becomes the highest point on an island. The prominence of the mountain is the same as the height of that imaginary island. The prominence of the highest points on land masses is measured as the elevation of the highpoint above the level of the surrounding water."

Utah County has eight of these peaks within its boundaries and those eight include three that are considered "Ultras", peaks with over 5000 feet of prominence. Again, quoting Bob Bolton, "By definition an Ultra-prominence peak rises at least 1,500 meters (4,921 feet) above its key saddle or surrounding water. The traditional threshold for Ultras in the U.S. has been 5000 feet of prominence, and there just happen to be no peaks in the 48 states whose “clean” prominence is between 1,500 meters and 5,000 feet. Clean prominence is a peak’s minimum prominence when exact saddle and/or summit elevations are not known."

The three "ultra" peaks are Mt. Nebo, Mt. Timpanogos and Flat Top Mtn (in the Oquirrhr range). From the highest elevation to the lowest, the 8 peaks
go like this:
Mt. Nebo
11749 Mt. Timpanogos
11068 Provo Peak
10620 Flat Top Mtn
10687 Loafer Peak
10192 Spanish Fork Peak
7690 Lake Mtn Peak
6904 West Mountain
Another peak that is near the Utah county line is Boulter Peak but showing it on this map is just for orientation.


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lcarreau - Mar 28, 2008 10:37 pm - Voted 10/10

The other Payson !

Dean, heard you were just five images short of 2,000. Please ... keep it up. I have more, but can't get them posted fast enough.
- Larry


Dean - Mar 28, 2008 11:02 pm - Hasn't voted

Re: The other Payson !

Yes, I'm creeping up on them. I will drive through my Payson and hopefully will be in your Payson and just a few weeks. I'm Arizona Dreaming since it is supposed to snow here again tomorrow. I'm going hiking anyway (snowshoes)


Tracy - Mar 29, 2008 2:29 am - Voted 10/10

Good summary

information and map! I shoulda bagged Loafer when I was hiking Santaquin Peak years ago. I also came close to the top of Lake Mtn. Pk. when exploring the area in my 84 Subaru years ago. Besides those two, Flat Top Mtn. is the only 2,000+ foot prominence peak I have still to do in Utah County.


Dean - Mar 29, 2008 9:11 am - Hasn't voted

Re: Good summary

Thanks Tracy. I almost missed Loafer myself. It took another hiker to point out that I was on Santaquin, not Loafer so I was able to hike over to Loafer and pick it up. It helps to have a map but I was just following the "Loafer Mtn Trail" which led to the top of Santaquin. Loafer is a bit of cross country. Let me know when you come to do Flat Top, I'll be happy to do it with you if possible.

Viewing: 1-4 of 4