| *** Supplementary Characterization Data *** |
| Pedon ID: S2017MT109002 | ( Wibaux, Montana ) | Print Date: Dec 8 2025 7:08AM |
| Sampled as on May 15, 2017: | Regent ; Fine, smectitic, frigid Vertic Argiustolls |
| Revised to : |
| United States Department of Agriculture | ||||
| SSL | - | Project | C2017USMT105 DSP MT Grazing System Comparison | Natural Resources Conservation Service |
| - | Site ID | S2017MT109002 Lat: 46° 45' 27.20" north Long: 104° 18' 34.00" west MLRA: 54 | National Soil Survey Center | |
| - | Pedon No. | 17N0867 | Kellogg Soil Survey Laboratory | |
| - | General Methods 1B1A, 2A1, 2B | Lincoln, Nebraska 68508-3866 | ||
| Tier 1 | -1- | -2- | -3- | -4- | -5- | -6- | -7- | -8- | -9- | -10- | -11- | -12- | -13- | -14- | -15- | -16- | -17- | -18- | -19- | -20- | -21- | -22- | -23- | -24- | -25- | |||
| (- - - - - - - - - - - - - - - - - - - - - - Engineering PSDA - - - - - - - - - - - - - - - - - - - - -) | (- - - - - Cumulative Curve Fractions - - - - -) (<75mm) | ( Atter- ) | ( Gradation ) | |||||||||||||||||||||||||
| Percentage Passing Sieve | USDA Less Than Diameters (mm) at | berg | Uni- | Cur- | ||||||||||||||||||||||||
| Depth | 3 | 2 | 3/2 | 1 | 3/4 | 3/8 | 4 | 10 | 40 | 200 | 20 | 5 | 2 | 1. | .5 | .25 | .10 | .05 | 60 | 50 | 10 | LL | PI | fmty | vtur | |||
| Layer | (cm) | Horz | Prep | (-------------------Inches-------------------) | (---------Number---------) | (------Microns----) | (---------Millimeter----------) | (-----Percentile---) | (----%----) | CU | CC | |||||||||||||||||
| 17N04237 | 0-10 | A | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 88 | 61 | 48 | 40 | 100 | 99 | 99 | 94 | 77 | 0.02 | 0.006 | tr | 53.1 | 0.2 | ||
| 17N04238 | 10-25 | Bt | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 88 | 66 | 54 | 46 | 100 | 99 | 98 | 94 | 81 | 0.01 | 0.003 | tr | 30.1 | 0.2 | ||
| 17N04239 | 25-44 | Btk | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 91 | 70 | 58 | 50 | 100 | 99 | 99 | 96 | 85 | 0.01 | 0.002 | tr | 19.5 | 0.3 | ||
| 17N04240 | 44-65 | Btkss | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 92 | 73 | 60 | 52 | 100 | 100 | 99 | 97 | 86 | tr | 0.002 | tr | 15.7 | 0.4 | ||
| 17N04241 | 65-85 | BCky | S | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 93 | 74 | 61 | 53 | 100 | 100 | 100 | 98 | 87 | tr | 0.002 | tr | 14.0 | 0.4 | ||
| Tier 2 | -26- | -27- | -28- | -29- | -30- | -31- | -32- | -33- | -34- | -35- | -36- | -37- | -38- | -39- | -40- | -41- | -42- | -43- | -44- | -45- | -46- | -47- | -48- | -49- | -50- | |||||
| (- - - - - - - - - - - - - - - - - - - - - - Weight Fractions - - - - - - - - - - - - - - - - - - - - -) | (- - - - - - - - - - - Weight Per Unit Volume (g cm-3 )- - - - - - - -) | (- - Void - -) | ||||||||||||||||||||||||||||
| Whole Soil (mm) | <75 mm Fraction | Whole Soil | <2 mm Fraction | Ratios | ||||||||||||||||||||||||||
| >2 | 250 | 250 | 75 | 75 | 20 | 5 | 75 | 75 | 20 | 5 | Soil Sur | Engineering | Soil Survey | Engineering | At 33 kPa | |||||||||||||||
| Depth | -UP | -75 | -2 | -20 | -5 | -2 | <2 | -2 | -20 | -5 | -2 | <2 | 33 | Oven | Moist | Satur | 33 | 1500 | Oven | Moist | Satur | Whole | <2 | |||||||
| Layer | (cm) | Horz | Prep | (------------------- % of Whole Soil ------------------) | (--------- % of <75 mm ---------) | kPa | -dry | -ated | kPa | kPa | -dry | -ated | Soil | mm | ||||||||||||||||
| DbWR1 | DbWR1 | |||||||||||||||||||||||||||||
| 17N04237 | 0-10 | A | S | tr | tr | -- | -- | tr | 100 | tr | -- | -- | tr | 100 | 1.04 | 1.36 | 1.38 | 1.65 | 1.04 | 1.18 | 1.36 | 1.39 | 1.65 | 1.55 | 1.55 | |||||
| 17N04238 | 10-25 | Bt | S | tr | tr | -- | tr | -- | 100 | tr | -- | tr | -- | 100 | 1.37 | 1.70 | 1.78 | 1.85 | 1.37 | 1.48 | 1.70 | 1.77 | 1.85 | 0.93 | 0.93 | |||||
| 17N04239 | 25-44 | Btk | S | tr | tr | -- | tr | tr | 100 | tr | -- | tr | tr | 100 | 1.33 | 1.74 | 1.74 | 1.83 | 1.33 | 1.50 | 1.74 | 1.74 | 1.83 | 0.99 | 0.99 | |||||
| 17N04240 | 44-65 | Btkss | S | 1 | 1 | -- | tr | tr | 99 | 1 | -- | tr | tr | 99 | 1.32 | 1.85 | 1.77 | 1.82 | 1.31 | 1.54 | 1.84 | 1.76 | 1.82 | 1.01 | 1.02 | |||||
| 17N04241 | 65-85 | BCky | S | -- | -- | -- | -- | -- | 100 | -- | -- | -- | -- | 100 | 1.26 | 1.82 | 1.71 | 1.78 | 1.26 | 1.49 | 1.82 | 1.71 | 1.78 | 1.10 | 1.10 | |||||
| *** Supplementary Characterization Data *** |
| Pedon ID: S2017MT109002 | ( Wibaux, Montana ) | Print Date: Dec 8 2025 7:08AM |
| Sampled As | : | Regent | Fine, smectitic, frigid Vertic Argiustolls | ||
| USDA-NRCS-NSSC-Soil Survey Laboratory | ; | Pedon No. 17N0867 | |||
| Tier 3 | -51- | -52- | -53- | -54- | -55- | -56- | -57- | -58- | -59- | -60- | -61- | -62- | -63- | -64- | -65- | -66- | -67- | -68- | -69- | -70- | -71- | -72- | -73- | -74- | -75- | |||
| (- - - - - - - - - - - - - - - - - Volume Fractions - - - - - - - - - - - - - - - -) | C | (- - - - - - - Ratios To Clay - - - - - -) | (- - Linear Extensiblity - -) | (- - WRD - -) | ||||||||||||||||||||||||
| Whole Soil (mm) At 33 kPa | /N | <2 mm Fraction | Whole Soil | <2 mm | Whole | <2 | ||||||||||||||||||||||
| >2 | 250 | 250 | 75 | 75 | 20 | 5 | 2- | .05- | LT | Pores | Rat | Fine | CEC | 1500 | LEP | 33 kPa | to % | Soil | mm | |||||||||
| Depth | -UP | -75 | -2 | -20 | -5 | -2 | <2 | .05 | .002 | .002 | D | F | -io | Clay | Sum | NH4- | kPa | 33 | 1500 | Oven | 1500 | Oven | ||||||
| Layer | (cm) | Horz | Prep | (----------------------------- % of Whole Soil ---------------------------) | Cats | OAC | H2O | kPa | kPa | -dry | kPa | -dry | (---in3/in3---) | |||||||||||||||
| 17N04237 | 0-10 | A | S | tr | -- | -- | tr | -- | -- | tr | 100 | 9 | 14 | 16 | 27 | 34 | 10 | 1.03 | 0.51 | 0.236 | 4.3 | 9.4 | 4.3 | 9.4 | 0.14 | 0.14 | ||
| 17N04238 | 10-25 | Bt | S | tr | -- | -- | tr | -- | tr | -- | 100 | 10 | 18 | 24 | 7 | 41 | 10 | 0.96 | 0.44 | 0.162 | 2.8 | 7.5 | 2.6 | 7.5 | 0.12 | 0.12 | ||
| 17N04239 | 25-44 | Btk | S | tr | -- | -- | tr | -- | tr | tr | 100 | 8 | 17 | 25 | 9 | 41 | 9 | 0.39 | 0.188 | 4.1 | 9.4 | 4.1 | 9.4 | 0.15 | 0.15 | |||
| 17N04240 | 44-65 | Btkss | S | tr | -- | -- | tr | -- | tr | tr | 100 | 7 | 17 | 25 | 5 | 45 | 10 | 0.41 | 0.232 | 5.5 | 11.9 | 5.5 | 12.0 | 0.17 | 0.17 | |||
| 17N04241 | 65-85 | BCky | S | -- | -- | -- | -- | -- | -- | -- | 100 | 6 | 16 | 25 | 7 | 45 | 18 | 0.43 | 0.246 | 5.7 | 13.0 | 5.7 | 13.0 | 0.17 | 0.17 | |||
| Tier 4 | -76- | -77- | -78- | -79- | -80- | -81- | -82- | -83- | -84- | -85- | -86- | -87- | -88- | -89- | -90- | -91- | -92- | -93- | -94- | -95- | -96- | -97- | -98- | |||
| (- - - - - - - - - - - - - - - - - - - Weight Fractions - Clay Free - - - - - - - - - - - - - - - - - -) | Text | PSDA (mm) | pH | Elect. | Part- | |||||||||||||||||||||
| (--------------- Whole Soil ---------------) | (------------------- <2 mm Fraction -------------------) | -ure | Sand | Silt | Clay | Ca | Res- | Con- | -icle | |||||||||||||||||
| >2 | 75 | 20 | 2- | .05- | < | (------------- Sands -------------) | (--- Silts ---) | Cl | by | 2- | .05- | < | Cl2 | ist. | duct | Den- | ||||||||||
| Depth | -2 | -2 | .05 | .002 | .002 | VC | C | M | F | VF | C | F | ay | PSDA | .05 | .002 | .002 | .01M | ohms | dS m-1 | sity | |||||
| Layer | (cm) | Horz | Prep | (- % of >2 mm Sand and Silt -) | (------------------% of Sand and Silt -------------) | <2 mm | (---- % of 2 mm ----) | (-------- <2 mm --------) | g cm-3 | |||||||||||||||||
| 3A1a1a | 4C1a2a | 4F2 | ||||||||||||||||||||||||
| 17N04237 | 0-10 | A | S | -- | -- | -- | 38 | 61 | 66 | 1 | 1 | 1 | 7 | 29 | 27 | 34 | 66 | cl | 23.2 | 36.9 | 39.9 | 5.9 | 1.67 | |||
| 17N04238 | 10-25 | Bt | S | -- | -- | -- | 36 | 64 | 86 | 1 | 1 | 1 | 8 | 25 | 27 | 37 | 87 | c | 19.3 | 34.3 | 46.4 | 7.3 | 0.64 | |||
| 17N04239 | 25-44 | Btk | S | -- | -- | -- | 30 | 69 | 100 | tr | 1 | 1 | 5 | 23 | 29 | 40 | 100 | c | 15.2 | 34.7 | 50.1 | 8.0 | 0.73 | |||
| 17N04240 | 44-65 | Btkss | S | 2 | 2 | -- | 28 | 70 | 105 | tr | tr | 1 | 4 | 23 | 27 | 44 | 107 | c | 13.9 | 34.4 | 51.7 | 8.1 | 1.29 | |||
| 17N04241 | 65-85 | BCky | S | -- | -- | -- | 27 | 73 | 112 | -- | tr | 1 | 4 | 22 | 28 | 45 | 112 | c | 12.7 | 34.4 | 52.9 | 8.1 | 3.96 | |||