South of Boise near Kuna, the Pleasant Valley Cycle Park has several tracks including a motocross track, a supercross track, an ATV track and a Peewee track.
Directions from Boise:
Take the S. Orchard St exit (exit 52) off I-84. Go South on S. Orchard St.
S. Orchard Street becomes W. Gowen Rd. Follow W Gowen Rd to Pleasant Valley Rd.
Turn South (right) onto Pleasant Valley Road. Go South approximately 10 miles.
Cross Kuna-Mora Road. Go past R/R Tracks 1/2 mile on unpaved road.
The park is on the left.
Overall, Pleasant Valley Cycle Park is the 39th most popular dirt bike trail of all 53 dirt biking rides in Idaho.