T.W. Ingersoll,2024-02-122024-02-1210.15786/13682869https://wyoscholar.uwyo.edu/handle/internal/5752https://doi.org/10.15786/13682869Grotto Geyser Cone.https://creativecommons.org/licenses/by/4.0/PhotographyStereoscopicYellowstone National ParkWyomingfigure