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Hydric Soils List for MT025 Fallon County, Montana Soil Survey
Musym Map Unit Name Component Name % Hydric Local Landform Hydric Code* Meets Saturation Criteria* Meets Flooding Criteria* Meets Ponding Criteria*
7B Hanly-Ryell fine sandy loams, 0 to 4 percent slopes Hanly 50 No     --- --- ---
Ryell 35 No     --- --- ---
Frequently flooded soils 4 No     --- --- ---
Poorly drained & ponded soils 4 Yes flood plain 2B3,3 Yes No Yes
Channels with steep slopes 3 No     --- --- ---
Noncalcareous soils 3 No     --- --- ---
Very deep sandy loam soils 1 No     --- --- ---
56A Havre loam, 0 to 2 percent slopes Havre 85 No     --- --- ---
Frequently flooded soils 3 No     --- --- ---
Glendive and similar soils 3 No     --- --- ---
Noncalcareous soils 3 No     --- --- ---
Poorly drained & ponded soils 3 Yes flood plain 2B3,3 Yes No Yes
Moderately saline soils 2 No     --- --- ---
Very deep silt loam soils 1 No     --- --- ---
57A Harlake silty clay, saline, 0 to 2 percent slopes Harlake 85 No     --- --- ---
Havre and similar soils 4 No     --- --- ---
Nonsaline soils 4 No     --- --- ---
Poorly drained & ponded soils 4 Yes flood plain 2B3,3 Yes No Yes
Frequently flooded soils 3 No     --- --- ---
61A Glendive sandy loam, 0 to 2 percent slopes Glendive 85 No     --- --- ---
Channels with steep slopes 3 No     --- --- ---
Gravelly loam substratums 3 No     --- --- ---
Hanly and similar soils 3 No     --- --- ---
Havre and similar soils 3 No     --- --- ---
Poorly drained soils 3 Yes flood plain 2B3 Yes No No
89A Marvan silty clay, 0 to 2 percent slopes Marvan 85 No     --- --- ---
Orinoco and similar soils 3 No     --- --- ---
Soils that are noncalcareous 3 No     --- --- ---
Soils that are nonsaline 3 No     --- --- ---
Soils that are nonsodic 3 No     --- --- ---
Areas barren of vegetation 2 No     --- --- ---
Poorly drained & ponded soils 1 Yes flood plain 2B3 Yes No No
89C Marvan silty clay, 2 to 8 percent slopes Marvan 85 No     --- --- ---
Orinoco and similar soils 3 No     --- --- ---
Soils that are noncalcareous 3 No     --- --- ---
Soils that are nonsaline 3 No     --- --- ---
Soils that are nonsodic 3 No     --- --- ---
Areas barren of vegetation 2 No     --- --- ---
Poorly drained soils 1 Yes flood plain 2B3 Yes No No
145A Daglum-Adger complex, 0 to 2 percent slopes Daglum 45 No     --- --- ---
Adger 40 No     --- --- ---
Moderately deep saline soils 4 No     --- --- ---
Nonsaline and nonsodic soils 4 No     --- --- ---
Moderately deep sodic soils 3 No     --- --- ---
Very deep strongly sodic soils 3 No     --- --- ---
Poorly drained & ponded soils 1 Yes depression 2B3,3 Yes No Yes
156A Havre loam, saline, 0 to 2 percent slopes Havre 85 No     --- --- ---
Glendive and similar soils 5 No     --- --- ---
Harlake and similar soils 4 No     --- --- ---
Channels with steep slopes 2 No     --- --- ---
Frequently flooded soils 2 No     --- --- ---
Noncalcareous soils 1 No     --- --- ---
Poorly drained & ponded soils 1 Yes flood plain 2B3,3 Yes No Yes
157A Harlake silty clay loam, 0 to 2 percent slopes Harlake 90 No     --- --- ---
Channels with steep slopes 2 No     --- --- ---
Frequently flooded soils 2 No     --- --- ---
Havre and similar soils 2 No     --- --- ---
Moderately saline soils 2 No     --- --- ---
Moderately sodic soils 1 No     --- --- ---
Poorly drained & ponded soils 1 Yes flood plain 2B3,3 Yes No Yes
160E Cabbart-Rock outcrop-Delpoint complex, 15 to 50 percent slopes Cabbart 50 No     --- --- ---
Rock outcrop 20 No     --- --- ---
Delpoint 15 No     --- --- ---
Abor and similar soils 3 No     --- --- ---
Blacksheep and similar soils 3 No     --- --- ---
Orinoco and similar soils 3 No     --- --- ---
Yawdim and similar soils 3 No     --- --- ---
Slopes less than 15 percent 2 No     --- --- ---
Poorly drained soils 1 Yes draw 2B3 Yes No No
161B Glendive sandy loam, saline, 0 to 4 percent slopes Glendive 85 No     --- --- ---
Havre and similar soils 3 No     --- --- ---
Nonsaline Glendive soils 3 No     --- --- ---
Strongly saline soils 3 No     --- --- ---
Areas of gullies & channels 2 No     --- --- ---
Poorly drained & ponded soils 2 Yes flood plain 2B3,3 Yes No Yes
Strongly sodic soils 2 No     --- --- ---
186A Yamacall-Havre loams, 0 to 2 percent slopes Yamacall 70 No     --- --- ---
Havre 20 No     --- --- ---
Darker colored surface layers 2 No     --- --- ---
Delpoint and similar soils 2 No     --- --- ---
Lonna and similar soils 2 No     --- --- ---
Slopes more than 2 percent 2 No     --- --- ---
Moderately saline soils 1 No     --- --- ---
Poorly drained & ponded soils 1 Yes flood plain 2B3,3 Yes No Yes
186C Yamacall-Havre loams, 2 to 8 percent slopes Yamacall 70 No     --- --- ---
Havre 20 No     --- --- ---
Channels with steep slopes 2 No     --- --- ---
Delpoint and similar soils 2 No     --- --- ---
Lonna and similar soils 2 No     --- --- ---
Moderately saline soils 2 No     --- --- ---
Darker colored surface layers 1 No     --- --- ---
Poorly drained & ponded soils 1 Yes flood plain 2B3 Yes No No
256A Havre-Harlake complex, 0 to 2 percent slopes Havre 50 No     --- --- ---
Harlake 40 No     --- --- ---
Channels with steep slopes 2 No     --- --- ---
Glendive and similar soils 2 No     --- --- ---
Moderately saline soils 2 No     --- --- ---
Poorly drained & ponded soils 2 Yes flood plain 2B3,3 Yes No Yes
Frequently flooded soils 1 No     --- --- ---
Noncalcareous soils 1 No     --- --- ---
270E Busby, gullied-Delpoint-Yawdim complex, 8 to 25 percent slopes Busby 30 No     --- --- ---
Delpoint 30 No     --- --- ---
Yawdim 25 No     --- --- ---
Areas of Rock outcrop 3 No     --- --- ---
Cabbart and similar soils 3 No     --- --- ---
Slightly saline soils 3 No     --- --- ---
Yamacall and similar soils 3 No     --- --- ---
Slopes more than 25 percent 2 No     --- --- ---
Poorly drained soils 1 Yes draw 2B3 Yes No No
358D Neldore-Bascovy clays, 4 to 15 percent slopes Neldore 45 No     --- --- ---
Bascovy 40 No     --- --- ---
Cabbart and similar soils 3 No     --- --- ---
Moderately saline soils 3 No     --- --- ---
Shallow acid soils 3 No     --- --- ---
Yawdim and similar soils 3 No     --- --- ---
Calcareous surface layers 2 No     --- --- ---
Poorly drained & ponded soils 1 Yes depression 2B3,3 Yes No Yes
386E Yamacall-Cabbart loams, 15 to 35 percent slopes Yamacall 50 No     --- --- ---
Cabbart 35 No     --- --- ---
Areas of Rock outcrop 3 No     --- --- ---
Delpoint and similar soils 3 No     --- --- ---
Moderately saline soils 3 No     --- --- ---
Stony surface layers 3 No     --- --- ---
Slopes more than 35 percent 2 No     --- --- ---
Poorly drained soils 1 Yes draw 2B3 Yes No No

*Hydric Soils Criteria

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Last Modified: 12/10/2007