Here is a local loop that I did, enjoy!

 

One of the best rides in the Boise area. We try to ride to Idaho City at least a few times a year from Mt Home. Another good ride is head to Stanley. From there you can two directions, left towards Challis or right to Sun Valley. The route to Sun Valley will take you past Redfish Lake and then up Galena Summit. If you go to Challis, strongly suggest you head South on Hwy 93 to Arco. Either way, there are many picture ops and great scenery.