(Little Prickly Pear Creek, 101', 1905) across Little Prickly Pear Creek NNW of Helena, Lewis & Clark County, MT. Chevalier Dr. SW 6.9 miles from jct with I15 exit 216 N. of Helena to the bridge. (N46 49.846 W112 12.111) Photos by Jack & June Schmidt 7-15-13.