| *** Taxonomy Characterization Data *** |
| Pedon ID: S2021MT095705 | ( Stillwater, Montana ) | Print Date: Dec 6 2025 8:33AM |
| Sampled as on Aug 3, 2021: | Grail ; Fine, smectitic, frigid Pachic Vertic Argiustoll |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | C2022USMT016 UMRWP Montana Region 5 | Natural Resources Conservation Service |
| - | Site ID | S2021MT095705 Lat: 45° 33' 22.93" north Long: 109° 36' 41.44" west MLRA: 46 | National Soil Survey Center | |
| - | Pedon No. | 22N0085 | Kellogg Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| Taxonomy Tier 1 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | |||
| Fine | CaCO3 | 1500 | .1-75 | Bulk | Cole | Vol | Resist | ||||||
| Clay | Clay | Clay | kPa | Clay | mm | Den | Whole | % of | Min | ||||
| Depth | <.002 | <.0002 | <.002 | /Clay | Est | Frac | 33 kPa | Soil | Whole | % | |||
| Layer | (cm) | Horz | Prep | (---------% of <2 mm-------) | (-------- % --------) | g cm-3 | cm cm-1 | ||||||
| 3A1a1a | 3A1a1a | DbWR1 | |||||||||||
| 22N00453 | 0-13 | A | S | 45.6 | 26.6 | 0.45 | 23 | 1.13 | 0.076 | 4 | |||
| 22N00454 | 13-30 | Btk | S | 44.2 | 14.1 | 0.45 | 22 | 1.24 | 0.070 | 3 | |||
| 22N00455 | 30-57 | Bk1 | S | 38.1 | 0.45 | 22 | 1.40 | 0.051 | 5 | ||||
| 22N00456 | 57-84 | Bk2 | S | 40.2 | 0.48 | 4 | 1.42 | 0.082 | -- | ||||
| 22N00457 | 84-129 | BC | S | 21.9 | 0.74 | 40.3 | 28 | 1.49 | 0.057 | 13 | |||
| Taxonomy Tier 2 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | |||
| pH | pH | Org | Tot | Al+½ Fe | CO3 as | (--- Base Sat ---) | NZ | ECEC | CEC7 | ECEC | Al | ||||||||
| Depth | H2O | NaF | C | C | Oxal | ODOE | CaCO3 | NH4 | Bases | P Ret | cmol(+) | /Clay | /Clay | Sat | E C | ESP | |||
| Layer | (cm) | Horz | Prep | (------------------------------------------ % --------------------------------------------) | kg -1 | % | dS m-1 | % | |||||||||||
| 4C1a2a | 4H2a | 4G4 | 4E1a1a1a1 | 4F2 | |||||||||||||||
| 22N00453 | 0-13 | A | S | 7.2 | 2.65 | 0.29 | 0.04 | 1 | 100* | 0.96 | 0.87 | tr | |||||||
| 22N00454 | 13-30 | Btk | S | 7.7 | 1.26 | 0.34 | 0.03 | 2 | 100* | 1.06 | 0.52 | tr | |||||||
| 22N00455 | 30-57 | Bk1 | S | 8.2 | 1.68 | 0.23 | 0.02 | 12 | 100* | 1.14 | 0.40 | 1 | |||||||
| 22N00456 | 57-84 | Bk2 | S | 8.6 | 1.28 | 0.17 | 0.01 | 9 | 100* | 1.17 | 0.40 | 3 | |||||||
| 22N00457 | 84-129 | BC | S | 8.5 | 0.42 | 0.19 | 0.01 | 2 | 100* | 2.07 | 0.87 | 5 | |||||||
| Pedon Calculations | |||
| Calculation Name | Result | Units of Measure | |
| Weighted Particles, 0.1-75mm, 75 mm Base | 22 | % wt | |
| Volume, >2mm, Weighted Average | 4 | % vol | |
| Clay, carbonate free, set 2, Weighted Average | 40 | % wt | |
| Clay, total, set 2, Weighted Average | 40 | % wt | |
| CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 8 | 1.11 | (NA) | |
| LE, Whole Soil, Summed to 1m | 7 | cm/m | |
| Weighted averages based on control section: 13-57 cm | |||