Utah Oxytropis?

I found this lovely, compact species growing in widely-scattered colonies in the Uinta Mountains, Uintah County, Utah, blooming on May 21, 2009. I was in the area of Brush Creek Canyon Overlook at an elevation of between 8,400 and 8,700 feet in large, open meadows ringed by aspen groves. I don't know if it is, indeed, an Oxytropis but it is definitely in Fabaceae. Can you help me put a name to my photos?