About This Route
The Thunder River , Deer Creek Loop, a 22-30 mile strenuous backpack from North Rim, features waterfalls and side canyons. Permits essential for Surprise Valley or Deer Creek camps; remote, no water until Thunder River.
Safety Considerations
Water scarcity first 7 miles; carry 5+ liters. Steep, unmaintained trails risk falls; use Microspikes for wet rocks. Flash floods deadly in narrows. NPS urges groups of 4+; bears rare but food hangs required.
Essential Gear
Nalgene bottles, Petzl headlamp, Black Diamond poles. Ursack for food storage.
Emergency Tips
No phones; PLB critical. Self-rescue via trail or river scout boats.
Stunning Thunder River gushes from limestone; respect fragility per Leave No Trace.