Police have arrested a man in the Black Hills for allegedly exposing himself to several girls along a Spearfish bike trail.
32-year-old Joshua Michael Himrich of Spearfish is charged with indecent exposure involving a child, which is a felony.
The incident happened last Monday along Spearfish Creek.
Police arrested Himrich Friday after one of the alleged victims identified him as the suspect.
Police say Himrich has admitted to intentionally exposing himself to the girls.