*** Primary Characterization Data ***

Pedon ID: 80MT015001

( Chouteau, Montana )

Print Date: Nov 13 2024 3:04PM

Sampled as on Jul 30, 1980:	Bearpaw ; Fine, montmorillonitic Typic Argiboroll
Revised to correlated:	Linwell ; Fine, smectitic Cumulic Haploborolls

				United States Department of Agriculture
SSL	-	Project	CP80NL274   CROP EVALUATION RESEARCH SEA-ARS	Natural Resources Conservation Service
	-	Site ID	S1980MT015001   Lat: 47° 40' 35.00" north  Long: 110° 42' 16.00" west  MLRA: 52	National Soil Survey Center
	-	Pedon No.	80P0421	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
80P02273	Ap	Ap	0-15				CL	SIC
80P02274	Bt1	B21t	15-51				C	CL
80P02275	Bt2	B22t	51-76				SIC	SICL
80P02276	Bk11	B23ca	76-119				C	SICL
80P02277	Bk12	B24ca	119-163				C	SICL
80P02278	Bk2	C1ca	163-239				SICL	SIC
80P02279	Bk3	C2ca	239-305				CL	CL
80P02280	C1	C3	305-335				SICL	SIL
80P02281	C2	C3	335-366				SICL	CL
80P02282	C3	C3	366-396				SICL	CL
80P02283	C4	C3	396-427				SICL	CL
80P02284	C5	C3	427-457				SICL	CL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.58	(NA)
Clay, carbonate free, Weighted Average	36	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	9	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	36	% wt
Weighted averages based on control section: 15-65 cm

*** Primary Characterization Data ***

Pedon ID: 80MT015001

( Chouteau, Montana )

Print Date: Nov 13 2024 3:04PM

Sampled As	:	Bearpaw		Fine, montmorillonitic Typic Argiboroll
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  80P0421

---

PSDA  &  Rock Fragments				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-
					(- - - - - Total - - - - - -)			(- - Clay - - -)		(- - - - Silt - - - - -)		(- - - - - - - - - - - - Sand - - - - - - - - - - - -)					( Rock Fragments   (mm) )
				Lab	Clay	Silt	Sand	Fine	CO3	Fine	Coarse	VF	F	M	C	VC	(- - - - - - - - Weight - - - - - - - -)				>2 mm
				Text-	<	.002	.05	<	<	.002	.02	.05	.10	.25	.5	1	2	5	20	.1-	wt %
	Depth			ure	.002	-.05	-2	.0002	.002	-.02	-.05	-.10	-.25	-.50	-1	-2	-5	-20	-75	75	whole
Layer	(cm)	Horz	Prep		(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)												(- - - - - - - % of <75mm - - - - - -)				soil
				3A1a1a	3A1a1a	3A1a1a	3A1a1a		3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3B1	3B1	3B1
80P02273	0-15	Ap	S	sic	40.7	41.2	18.1			24.7	16.5	9.0	5.8	2.5	0.6	0.2	tr	1	--	10	1
80P02274	15-51	Bt1	S	cl	38.2	40.9	20.9			22.4	18.5	11.4	6.5	2.3	0.5	0.2	tr	tr	--	10	tr
80P02275	51-76	Bt2	S	sicl	32.0	55.5	12.5		1.4	32.4	23.1	7.8	3.2	1.1	0.3	0.1	tr	--	--	5	tr
80P02276	76-119	Bk11	S	sicl	34.8	55.7	9.5			30.3	25.4	6.3	2.2	0.8	0.1	0.1	tr	--	--	3	tr
80P02277	119-163	Bk12	S	sicl	34.4	56.7	8.9			34.0	22.7	5.4	2.3	0.8	0.2	0.2	tr	1	--	4	1
80P02278	163-239	Bk2	S	sic	50.0	45.2	4.8			39.6	5.6	2.0	1.8	0.7	0.2	0.1	tr	--	--	3	tr
80P02279	239-305	Bk3	S	cl	33.0	43.2	23.8			32.6	10.6	9.5	9.4	3.4	1.0	0.5	1	tr	--	15	1
80P02280	305-335	C1	S	sil	24.6	57.6	17.8			39.0	18.6	11.6	4.5	1.3	0.3	0.1	tr	1	--	8	1
80P02281	335-366	C2	S	cl	27.5	46.2	26.3			30.4	15.8	10.7	9.9	4.1	1.2	0.4	1	--	--	16	1
80P02282	366-396	C3	S	cl	33.8	38.2	28.0			25.5	12.7	9.5	10.9	5.1	1.7	0.8	tr	tr	--	19	tr
80P02283	396-427	C4	S	cl	30.4	38.5	31.1			25.1	13.4	11.2	12.0	5.9	1.5	0.5	1	2	--	22	3
80P02284	427-457	C5	S	cl	30.5	35.8	33.7			22.2	13.6	10.7	13.1	7.1	2.0	0.8	--	--	--	23	--

---

Bulk Density  &  Moisture				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(Bulk Density)		Cole	(- - - - - - - - - - - Water Content - - - - - - - - - - -)					( Air Dry-Oven Dry )		WRD	Aggst
				33	Oven	Whole	6	10	33	1500	1500 kPa	(- - - - Ratio - - - -)		Whole	Stabl	(- - Ratio/Clay - -)
	Depth			kPa	Dry	Soil	kPa	kPa	kPa	kPa	Moist		Corrected	Soil	2-0.5mm	CEC7	1500 kPa
Layer	(cm)	Horz	Prep	(- - - g cm-3 - - -)			(- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -)							cm3 cm-3	%
				4A1d	4A1h				4B1c	3C2a1a		3D1		4C1		8D1	8D1
80P02273	0-15	Ap	S							13.0		1.025				0.54	0.32
80P02274	15-51	Bt1	S	1.42	1.67	0.055			24.0	14.0		1.026		0.14		0.58	0.37
80P02275	51-76	Bt2	S	1.39	1.54	0.035			23.3	11.9		1.022		0.16		0.55	0.37
80P02276	76-119	Bk11	S	1.49	1.59	0.022			23.6	13.5		1.026		0.15		0.63	0.39
80P02277	119-163	Bk12	S	1.54	1.75	0.043			22.7	14.1		1.028		0.13		0.69	0.41
80P02278	163-239	Bk2	S	1.44	1.68	0.053			27.6	17.1		1.027		0.15		0.51	0.34
80P02279	239-305	Bk3	S	1.38	1.61	0.052			32.5	12.5		1.022		0.27		0.58	0.38
80P02280	305-335	C1	S	1.48	1.67	0.041			27.9	12.7		1.017		0.22		0.65	0.52
80P02281	335-366	C2	S							12.4		1.017				0.59	0.45
80P02282	366-396	C3	S	1.52	1.76	0.050			22.5	12.9		1.020		0.15		0.54	0.38
80P02283	396-427	C4	S							13.6		1.019				0.57	0.45
80P02284	427-457	C5	S							11.8		1.020				0.54	0.39

*** Primary Characterization Data ***

Pedon ID: 80MT015001

( Chouteau, Montana )

Print Date: Nov 13 2024 3:04PM

Sampled As	:	Bearpaw		Fine, montmorillonitic Typic Argiboroll
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  80P0421

---

Carbon  &  Extractions

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

-19-

(- - - - - Total - - - - -)

Est

OC

C/N

(- - - Dith-Cit Ext - - -)

(- - - - - - Ammonium Oxalate Extraction - - - - - -)

(- - - Na Pyro-Phosphate - - -)

Depth

C

N

S

OC

(WB)

Ratio

Fe

Al

Mn

Al+½Fe

ODOE

Fe

Al

Si

Mn

C

Fe

Al

Mn

Layer

(cm)

Horz

Prep

(- - - - - - - - - - % of <2 mm - - - - - - - - - -)

(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)

mg kg-1

(- - - - - - % of < 2mm - - - - -)

6B1b

6A1c

80P02273

0-15

Ap

S

0.129

1.42

11

80P02274

15-51

Bt1

S

0.098

0.77

8

80P02275

51-76

Bt2

S

0.082

0.75

9

80P02276

76-119

Bk11

S

0.58

80P02277

119-163

Bk12

S

0.40

80P02278

163-239

Bk2

S

0.35

80P02279

239-305

Bk3

S

0.27

80P02280

305-335

C1

S

0.30

80P02281

335-366

C2

S

0.34

80P02282

366-396

C3

S

0.26

80P02283

396-427

C4

S

0.30

80P02284

427-457

C5

S

0.27

---

CEC  &  Bases				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(- - - - - - NH4OAC Extractable Bases - - - - -)								CEC8	CEC7	ECEC		(- - - - Base - - - -)
								Sum	Acid-	Extr	KCl	Sum	NH4	Bases	Al	(- Saturation -)
	Depth			Ca	Mg	Na	K	Bases	ity	Al	Mn	Cats	OAC	+Al	Sat	Sum	NH4OAC
Layer	(cm)	Horz	Prep	(- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -)							mg kg-1	(- - - - cmol(+) kg-1 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2e	6O2d	6P2b	6Q2b		6H2b				5A8a			5C3	5C1
80P02273	0-15	Ap	S	13.1	6.1	0.2	1.4		7.0				22.1			75	94
80P02274	15-51	Bt1	S	17.8*	7.4	0.1	1.0		3.0				22.3			90	100
80P02275	51-76	Bt2	S	41.9*	9.8	0.2	0.7						17.7			100	100
80P02276	76-119	Bk11	S	42.2*	17.0	0.6	0.9						21.9			100	100
80P02277	119-163	Bk12	S	30.8*	20.8	1.9	0.7						23.9			100	100
80P02278	163-239	Bk2	S	47.9*	18.0	2.4	0.5						25.6			100	100
80P02279	239-305	Bk3	S	42.9*	13.4	2.0	0.3						19.1			100	100
80P02280	305-335	C1	S	34.1*	12.8	2.6	0.2						15.9			100	100
80P02281	335-366	C2	S	33.7*	11.7	2.4	0.3						16.3			100	100
80P02282	366-396	C3	S	38.5*	13.2	2.9	0.4						18.3			100	100
80P02283	396-427	C4	S	35.6*	12.8	2.8	0.4						17.4			100	100
80P02284	427-457	C5	S	33.7*	10.9	2.6	0.4						16.5			100	100

^*Extractable Ca may contain Ca from calcium carbonate or gypsum., CEC7 base saturation set to 100.

*** Primary Characterization Data ***

Pedon ID: 80MT015001

( Chouteau, Montana )

Print Date: Nov 13 2024 3:04PM

Sampled As	:	Bearpaw		Fine, montmorillonitic Typic Argiboroll
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  80P0421

---

Salt				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-	-20-
				(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)																	1:2
																			Total	Elec	Elec	Exch
	Depth			Ca	Mg	Na	K	CO3	HCO3	F	Cl	PO4	Br	OAC	SO4	NO2	NO3	H2O	Salts	Cond	Cond	Na	SAR
Layer	(cm)	Horz	Prep	(- - - - - mmol(+) L-1 - - - - -)				(- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -)										(- - - - % - - - -)		(- - dS m-1 - -)		%
				6N1b	6O1b	6P1b	6Q1b	6I1b	6J1b	6U1a	6K1c				6L1c	6W1a	6M1c	8A	8D5	8A1a	4F1a1a1		5E
80P02273	0-15	Ap	S																		0.11	1
80P02274	15-51	Bt1	S	4.0	3.0	0.5	0.2	--	4.6	0.1	0.1				0.9	--	0.1	48.6	tr	0.60	0.35	tr	tr
80P02275	51-76	Bt2	S	2.6	2.6	0.8	0.2	--	2.7	0.1	0.2				2.1	--	--	47.4	tr	0.56	0.32	1	tr
80P02276	76-119	Bk11	S	1.0	2.1	2.2	0.2	--	3.3	0.1	0.1				1.0	0.1	--	53.6	tr	0.50	0.30	2	2
80P02277	119-163	Bk12	S	0.6	1.3	4.8	0.1	--	3.2	0.3	0.3				1.8	--	0.1	55.3	tr	0.64	0.40	7	5
80P02278	163-239	Bk2	S	0.7	1.1	6.1	0.1	--	3.5	0.1	0.1				3.2	0.1	--	64.8	tr	0.75	0.43	8	6
80P02279	239-305	Bk3	S	8.9	11.3	14.1	0.2	--	1.6	0.4	0.1				34.1	--	--	53.0	0.1	2.88	1.22	7	4
80P02280	305-335	C1	S	4.1	5.0	17.4	0.2	--	2.2	0.3	0.8				22.0	0.7	--	45.6	0.1	2.52	0.88	11	8
80P02281	335-366	C2	S	10.4	9.8	20.0	0.3	--	2.0	0.3	--				35.1	--	--	47.2	0.1	3.42	1.12	9	6
80P02282	366-396	C3	S	7.1	6.8	18.2	0.2	--	2.0	0.3	1.5				26.3	0.7	--	50.6	0.1	2.90	1.01	11	7
80P02283	396-427	C4	S	12.2	11.4	24.1	0.3	--	1.8	0.4	2.5				43.0	0.9	1.0	53.0	0.1	3.71	1.40	9	7
80P02284	427-457	C5	S	18.7	16.2	25.3	0.4	--	1.7	0.3	3.1				47.8	0.7	2.2	49.2	0.2	4.44	1.48	8	6

---

pH  &  Carbonates				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-
				(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)						(- - Carbonate - -)		(- - Gypsum - - -)
					CaCl2					As CaCO3		As CaSO4*2H2O		Resist
	Depth				0.01M	H2O	Sat			<2mm	<20mm	<2mm	<20mm	ohms
Layer	(cm)	Horz	Prep	KCl	1:2	1:1	Paste	Oxid	NaF	(- - - - - - - - - - - - % - - - - - - - - - - -)				cm-1
					8C1e	8C1a	8C1b			6E1b		6F1c		8E1
80P02273	0-15	Ap	S		7.0	7.7				--
80P02274	15-51	Bt1	S		7.1	7.3	7.0			tr				1700
80P02275	51-76	Bt2	S		7.8	8.0	7.8			4				2100
80P02276	76-119	Bk11	S		8.0	8.4	8.0			2				2000
80P02277	119-163	Bk12	S		8.1	8.7	8.1			2				1700
80P02278	163-239	Bk2	S		7.9	8.4	8.1			8				1500
80P02279	239-305	Bk3	S		7.8	8.2	7.9			7		--		730
80P02280	305-335	C1	S		7.9	8.3	8.1			7				920
80P02281	335-366	C2	S		7.8	8.1	7.8			6				740
80P02282	366-396	C3	S		7.8	8.1	7.8			5				690
80P02283	396-427	C4	S		7.8	8.0	7.7			5		--		580
80P02284	427-457	C5	S		7.7	7.9	7.6			5				510

*** Primary Characterization Data ***

Pedon ID: 80MT015001

( Chouteau, Montana )

Print Date: Nov 13 2024 3:04PM

Sampled As	:	Bearpaw		Fine, montmorillonitic Typic Argiboroll
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  80P0421

---

Clay Mineralogy (<.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Elemental

EGME

Inter

SiO2

Al2O3

Fe2O3

MgO

CaO

K2O

Na2O

Retn

preta

Depth

Fract

7A2i

7A3b

7C3

tion

Layer

(cm)

Horz

ion

( - - - - - - - - - peak size - - - - - - - - - - )

(- - - - - - - - - % - - - - - - - - - -)

(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)

mg g-1

80P02274

15.0-51.0

Bt1

tcly

MI 4

MT 3

KK 3

QZ 2

KK 18

7.6

3.1

80P02277

119.0-163.0

Bk12

tcly

MT 4

MI 3

KK 3

QZ 2

KK 17

8.4

2.6

80P02282

366.0-396.0

C3

tcly

MT 5

MI 3

KK 3

QZ 2

VR 1

KK 22

8.7

2.3

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MI Mica	MT Montmorillonite	QZ Quartz	VR Vermiculite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks