Lost Falls (also called Lost Creek Falls) is a pretty 40ft waterfall sitting quietly in a shadowy forest setting a little over 1/4-mile behind Roosevelt Lodge. Make sure you don't mistakenly take the trail to Lost Lake if you wish to see this waterfall. To get a decent view of the light flowing waterfall, you might have to do a little scramble amongst the steep talus slopes at the end of the trail. The falls probably doesn't have a life far beyond the early days of summer so come in late spring or early summer to see this little guy flow.