TY - RPRT TI - How deep is your soil? Quantifying and spatially analyzing understudied deep soil in the United States AU - Feber, Gabrielle J. [Univ. of Idaho, Moscow, ID (United States)] (ORCID:0009000808053285) AU - Collins, Rebecca S. [Univ. of Alaska, Fairbanks, AK (United States)] (ORCID:0009000324742682) AU - Cowan, Natalie [Univ. of Idaho, Moscow, ID (United States)] AU - Cruz-O’Byrne, Rosmery [Arizona State Univ., Tempe, AZ (United States)] (ORCID:0000000337810771) AU - Komolafe, Emmanuel [Univ. of Wyoming, Laramie, WY (United States)] (ORCID:000000022918120X) AU - Lam, Kristy I. [Univ. of Hawaii at Manoa, Honolulu, HI (United States)] AU - Crow, Susan E. [Univ. of Hawaii at Manoa, Honolulu, HI (United States)] AU - Fierer, Noah [Univ. of Colorado, Boulder, CO (United States)] AU - Gasch, Caley K. [Univ. of Alaska, Fairbanks, AK (United States)] AU - Strickland, Michael S. [Univ. of Idaho, Moscow, ID (United States)] AU - Tan, Zeli [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)] (ORCID:0000000159582584) AU - Vargas, Rodrigo [Arizona State Univ., Tempe, AZ (United States)] AU - Williams, David G. [Univ. of Wyoming, Laramie, WY (United States)] (ORCID:0000000336275260) AU - Kayler, Zachary E. [Univ. of Idaho, Moscow, ID (United States)] PY - 2026 DO - 10.1016/j.geoderma.2026.117697 UR - https://www.osti.gov/biblio/3015985 ID - 3015985 ER -