Soils of Montana

1,390 soil series mapped on 68.35 million acres

Scobey, to scale.

Mollisols — soils with a thick, dark, organic-rich topsoil

The state soil, Scobey, ranks 12th of 1,390 series here on 995,473 acres. First place goes to Cabbart, an Entisol covering 3.1% of the state’s mapped soil. No order holds a majority; Mollisols lead with 39.3%, ahead of Entisols at 23.1%.

Atlas series mapped in Montana Guide: state soils and where series began

Soil orders in Montana

Mollisols 39.3%
Entisols 23.1%
Inceptisols 21.4%
Alfisols 11.2%
Vertisols 3.8%
Aridisols 1.0%
Andisols 0.1%
Histosols 0.1%
Spodosols <0.1%

Largest series in Montana

CabbartEntisols · 2,141,682 acres3.13%
KevinMollisols · 1,293,823 acres1.89%
NeldoreEntisols · 1,261,851 acres1.85%
HillonEntisols · 1,260,356 acres1.84%
LonnaInceptisols · 1,093,470 acres1.60%
DelpointInceptisols · 1,085,464 acres1.59%
CambethInceptisols · 1,077,977 acres1.58%
PhillipsAlfisols · 1,058,409 acres1.55%
VidaMollisols · 1,037,702 acres1.52%
ZahillInceptisols · 1,033,380 acres1.51%