Ko te maunga o Maunga St. Helens National Volcanoic Monument kei roto i te Gifford Pinchot National Forest. Ko te nuinga o te waa mai i te taha ki te hauauru, i runga i te mahere i raro. Mai i te Waitangi 5, maunu atu i te 68 me te whakawhiti ki te rawhiti ki runga i te Rohe Kaute 504. Ka kitea etahi pokapū manuhiri e rima i te huarahi 504.
Ka taea ano e te maunga o St. St. Helens te whakamaharatanga o te motu me te whanga o Gifford Pinchot ki te rawhiti, na roto i te huarahi mahi ngahere 99, mai i te tonga, na te Highway 503 me te taone o Cougar.
I roto i te Gifford Pinchot National Forest me Mount St. Helens National Volcanoic Monument, anake te hononga i waenganui i nga huarahi matua ara i roto i te ara ropu mahi. He mahere mahi ngahere, i tua atu i te mahere maapete o te taone, he tino taunakitanga mo nga manuhiri e whakamahere ana ki te peka atu i te Huarahi 504.
He mahere mo Mount St. Helens
- Gifford Pinchot National Forest (PDF)
- Te Papa Ataahua o St. St. Helens (PDF)
- 1980 Te mahere o Ashfall