Basically, while inside the park boundaries, your pet can only go where your car can go: on roads, in parking lots and campgrounds. Your pet must be on a leash (not more than 6 feet long) and under your control at all times and may not be staked. Within the park, pets are not allowed on trails, snow, in any buildings or amphitheaters, or in the Wilderness. The only exceptions are service animals such as seeing-eye and hearing-ear dogs. The one exception – dogs on a leash are allowed on the Pacific Crest Trail near the park’s eastern boundary.
There are many areas outside of the park nearby, where pets are allowed:
- Goat Lake Trail and Glacier View from FS Road 59 at Mt. Tahoma Trails;
- High Rock Lookout near FR 52;
- Forest Service Road trails in the Mt. Baker Snoqualmie National Forest such as Sheep Lake just east of Chinook Pass;
- Noble Knob, FR 7174;
- Sun Top on FR 7160 near Greenwater.
All walking trails within the Crystal Mountain trail system are open to your pets and dogs are allowed in the Mt. Rainier Gondolas during the summer months. Sunrise has a pet walking area. Another area outside of the National Park boundary is the Foothills Trail system on the northwest side of the park.