Distribution: Occurring east of the Cascades crest in northeastern Washington; in scattered locations including southeastern British Columbia, Sasketchewan, South Dakota, and Missouri.
Habitat: cliff crevices, usually on limestone, montane to subalpine.
Origin: Native
Growth Duration: Perennial
Conservation Status: Threatened in Washington (WANHP)
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PNW Herbaria: Specimen records of Pellaea gastonyi in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Pellaea gastonyi checklist entry
OregonFlora: Pellaea gastonyi information
E-Flora BC: Pellaea gastonyi atlas page
CalPhotos: Pellaea gastonyi photos