Southeast of Seattle in the Naches Ranger District, the Chinook Pass Area has miles of ATV riding trails located off SR410.
Here is a description of the Chinook Pass horse trails:
Lily Pond Trail (#617) is a more difficult 1 mile route.
Sweet Home Trail (#665) is a more difficult 1.7 mile route.
North Fork Wenas Trail (#670) is a more difficult 1.8 mile route.
Bald Mountain Trail (#675) is an easy 1.4 mile route.
Kaner Flat Trail (#676) is a most difficult 7.3 mile route.
Little Rattlesnake Trail (#680) is a more difficult 2.6 mile route.
Naches Pass Trail (#684) is an easy 6.3 mile route.
Milk Lake Trail (#686) is a more difficult 3.0 mile route.
Manastash Ridge Trail (#688) is a more difficult 6.6 mile route.
Summit Trail (#694) is a more difficult 5.4 mile route.
Mid-Summit Trail (#695) is a more difficult 2.0 mile route.
Mud Springs Trail (#696) is a more difficult 8.4 mile route.
Clover Springs (#697) is a more difficult 3.4 mile route.
CJRs Hideout Trail (#644) is an easy 1.5 mile route.
Note: As of September 2007, ATV riding is prohibited on all open Forest Service roads.
Overall, Chinook Pass Area is the 24th most popular ATV riding trail of all 35 ATV trails in Washington.