*** Primary Characterization Data ***

Pedon ID: S1969MT027004

( Fergus, Montana )

Print Date: Dec 4 2024 3:06AM

Sampled as on Aug 12, 1969:	Komad
Revised to correlated:	Acel ; Fine, smectitic, frigid Mollic Eutroboralfs

				United States Department of Agriculture
SSL	-	Project	NL40001   SSIR SAMPLES	Soil Conservation Service
	-	Site ID	S1969MT027004   Lat: 47° 19' 47.69" north  Long: 110° 4' 59.98" west  MLRA: 58A	Lincoln Soil Survey Laboratory
	-	Pedon No.	40A3680	Soil Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
40A28370	Ap1	Ap1	0-15	69L0676				SIL
40A28371	Ap2	Ap2	15-24	69L0677				SIL
40A28372	Bt1	B21t	24-32	69L0678				SICL
40A28373	Bt2	B22t	32-44	69L0679				SIC
40A28374	By1	B31Cs	44-56	69L0680				SIC
40A28375	By2	B32Cs	56-85	69L0681				SIC
40A28376	C	C 1	85-107	69L0682				CL
40A28377	2C1	2C 2	107-143	69L0683				SCL
40A28378	2C2	2C 3	143-168	69L0684				SCL
40A28379			0-15	69L0685

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.58	(NA)
Clay, carbonate free, Weighted Average	38	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	4	% wt
Clay, total, Weighted Average	38	% wt
Weighted averages based on control section: 24-44 cm

*** Primary Characterization Data ***

Pedon ID: S1969MT027004

( Fergus, Montana )

Print Date: Dec 4 2024 3:06AM

Sampled As	:	Komad
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A3680

---

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	3A1a1a	3B1	3B1	3B1
40A28370	0-15	Ap1	S	sil	21.2	62.4	16.4	8.1		32.6	29.8	9.7	4.4	1.3	0.7	0.3	--	--	--	7	--
40A28371	15-24	Ap2	S	sil	23.0	62.8	14.2	9.5		31.2	31.6	9.6	3.3	0.7	0.4	0.2	--	--	--	5	--
40A28372	24-32	Bt1	S	sicl	33.7	57.2	9.1	19.1		30.3	26.9	6.2	2.1	0.5	0.2	0.1	--	--	--	3	--
40A28373	32-44	Bt2	S	sic	41.0	50.4	8.6	24.6		30.1	20.3	5.0	2.5	0.7	0.4	--	--	--	--	4	--
40A28374	44-56	By1	S	sic	46.6	43.8	9.6	27.3		27.6	16.2	4.0	3.0	1.2	0.8	0.6	--	--	--	6	--
40A28375	56-85	By2	S	sic	44.0	42.0	14.0	21.8	--	24.6	17.4	5.1	4.9	2.1	1.3	0.6	--	--	--	9	--
40A28376	85-107	C	S	cl	36.6	36.2	27.2		6.0	19.0	17.2	6.8	9.7	4.2	3.4	3.1	11	11	--	38	22
40A28377	107-143	2C1	S	scl	25.9	20.5	53.6		7.0	10.4	10.1	7.8	15.8	8.6	10.3	11.1	11	29	13	75	53
40A28378	143-168	2C2	S	scl	26.5	24.8	48.7		5.0	12.2	12.6	12.8	20.1	7.6	4.8	3.4	7	11	2	49	20
40A28379	0-15		S														--	--	--

---

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	%
				NK	4A1h			4B1c	NK	NK
40A28370	0-15	Ap1	S							7.8						0.65	0.37
40A28371	15-24	Ap2	S	1.51	1.57	0.013		24.7	21.4	8.1				0.20		0.62	0.35
40A28372	24-32	Bt1	S	1.47	1.65	0.039		22.1	19.7	12.5				0.11		0.60	0.37
40A28373	32-44	Bt2	S	1.50	1.74	0.051		24.6	22.5	15.3				0.11		0.57	0.37
40A28374	44-56	By1	S							16.1						0.50	0.35
40A28375	56-85	By2	S	1.57	1.83	0.052		24.3	20.0	16.0				0.06		0.48	0.36
40A28376	85-107	C	S							14.6						0.43	0.40
40A28377	107-143	2C1	S							9.5						0.37	0.37
40A28378	143-168	2C2	S							9.3						0.46	0.35

*** Primary Characterization Data ***

Pedon ID: S1969MT027004

( Fergus, Montana )

Print Date: Dec 4 2024 3:06AM

Sampled As	:	Komad
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A3680

---

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 - - - - -)
								NK		NK
40A28370	0-15	Ap1	S					2.02		1.1
40A28371	15-24	Ap2	S					1.61		1.0
40A28372	24-32	Bt1	S					1.10		1.1
40A28373	32-44	Bt2	S					1.02		1.3
40A28374	44-56	By1	S					0.66		1.4
40A28375	56-85	By2	S					0.33		1.3
40A28376	85-107	C	S					0.32		1.3
40A28377	107-143	2C1	S					0.13		1.9
40A28378	143-168	2C2	S					0.13		1.4

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				NK	NK	NK	NK		NK				NK
40A28370	0-15	Ap1	S	3.9	5.3	0.8	1.1	11.1	6.8			17.9	13.7			62	81
40A28371	15-24	Ap2	S	5.4	5.3	0.8	0.7		5.8				14.2			68	86
40A28372	24-32	Bt1	S	4.6*	12.5	2.3	0.7						20.1			100	100
40A28373	32-44	Bt2	S	3.9*	15.8	3.4	1.0						23.3			100	100
40A28374	44-56	By1	S	7.4*	15.8	4.8	0.9						23.5			100	100
40A28375	56-85	By2	S		17.7	6.8	0.8						21.2			100
40A28376	85-107	C	S	8.6*	15.2	7.0	0.6						15.9			100	100
40A28377	107-143	2C1	S	8.1*	9.1	5.2	0.3						9.6			100	100
40A28378	143-168	2C2	S	9.7*	10.5	5.9	0.3						12.2			100	100

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

*** Primary Characterization Data ***

Pedon ID: S1969MT027004

( Fergus, Montana )

Print Date: Dec 4 2024 3:06AM

Sampled As	:	Komad
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A3680

---

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 - -)		%
				NK	NK	NK												NK	8D5	NK
40A28370	0-15	Ap1	S																			6
40A28371	15-24	Ap2	S																			6
40A28372	24-32	Bt1	S																			11
40A28373	32-44	Bt2	S	2.2	12.0	22.0												51.3	0.1	2.96		10	8
40A28374	44-56	By1	S																			20
40A28375	56-85	By2	S																			32
40A28376	85-107	C	S	21.8	67.5	81.0												50.9	0.4	10.90		18	12
40A28377	107-143	2C1	S																			54
40A28378	143-168	2C2	S																			48

---

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
						NK	NK			NK		NK
40A28370	0-15	Ap1	S			5.0
40A28371	15-24	Ap2	S			5.0				--
40A28372	24-32	Bt1	S			7.0				--
40A28373	32-44	Bt2	S			8.0	7.8			--
40A28374	44-56	By1	S			8.0				--		--
40A28375	56-85	By2	S			8.0				1		1
40A28376	85-107	C	S			8.0	8.0			14
40A28377	107-143	2C1	S			8.0				22
40A28378	143-168	2C2	S			8.0				14

*** Primary Characterization Data ***

Pedon ID: S1969MT027004

( Fergus, Montana )

Print Date: Dec 4 2024 3:06AM

Sampled As	:	Komad
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A3680

---

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

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

40A28370

0.0-15.0

Ap1

tcly

MI 2

KK 1

MT 1

40A28373

32.0-44.0

Bt2

tcly

MI 3

KK 2

MT 2

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MI Mica	MT Montmorillonite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

*** Primary Characterization Data ***

Pedon ID: S1969MT027004

( Fergus, Montana )

Print Date: Dec 4 2024 3:06AM

Sampled As	:	Komad
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A3680

---

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	7A2																	tion
Layer	(cm)	Horz	ion	( - - - - - - - - - peak size - - - - - - - - - - )					(- - - - - - - - - % - - - - - - - - - -)				(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)							mg g-1
40A28373	32.0-44.0	Bt2	fcly	MI 4	KK 2	MT 1

FRACTION INTERPRETATION:
fcly - Fine Clay <0.0002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MI Mica	MT Montmorillonite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks