Wikipedia has some information about Mt Sentinel.  The climb starts at around 3,200ft and ascends to just under 5,000ft for an appx 1,800ft climb over just short of 2 miles. This is the route of the Sentinel Hill Climb race. Times going back to 2011 are recorded on the race website.  FKTs recorded here are current through 2019.

This information comes from Jason Schlarb's blog. University Mountain is a test climb near the University of Montana in Missoula. It is close to Mt Sentinel.