*** Primary Characterization Data ***

Pedon ID: S1970MT049003

( Lewis and Clark, Montana )

Print Date: Feb 16 2025 5:51AM

Sampled as on Jul 13, 1970:	Sappington
Revised to :

				United States Department of Agriculture
SSL	-	Project	NL40001   SSIR SAMPLES	Soil Conservation Service
	-	Site ID	S1970MT049003   Lat: 46° 35' 17.64" north  Long: 111° 49' 50.15" west	Lincoln Soil Survey Laboratory
	-	Pedon No.	40A3709	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
40A28571	Ap	Ap	0-10	70L0671				L
40A28572	Bt	B2 t	10-15	70L0672				CL
40A28573	Bk1	B3ca	15-27	70L0673				C
40A28574	Bk2	C1ca	27-52	70L0674				C
40A28575	Bk3	C2ca	52-87	70L0675				CL
40A28576	C1	C 3	87-130	70L0676				CL
40A28577	C2	C 4	130-180	70L0677				CL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Clay, carbonate free, Weighted Average	33	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	22	% wt
Volume, >2mm, Weighted Average	2	% vol
Clay, total, Weighted Average	33	% wt
Weighted averages based on control section: 10-15 cm

---

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
40A28571	0-10	Ap	S	l	19.2	40.5	40.3		--	16.8	23.7	11.7	12.8	6.8	7.0	2.0	2	3	--	32	5
40A28572	10-15	Bt	S	cl	33.1	38.6	28.3		--	15.1	23.5	9.4	9.1	4.5	3.9	1.4	2	2	--	22	4
40A28573	15-27	Bk1	S	c	40.7	34.6	24.7		22.0	16.3	18.3	7.3	8.7	3.9	3.4	1.4	4	1	--	22	5
40A28574	27-52	Bk2	S	c	43.4	27.6	29.0		25.0	14.9	12.7	6.4	9.0	4.5	5.9	3.2	4	4	--	29	8
40A28575	52-87	Bk3	S	cl	35.8	34.6	29.6		18.0	19.0	15.6	8.5	9.4	4.2	4.5	3.0	5	3	--	27	8
40A28576	87-130	C1	S	cl	28.1	37.3	34.6		9.0	19.7	17.6	10.0	9.4	4.7	6.3	4.2	5	4	--	31	9
40A28577	130-180	C2	S	cl	27.0	33.6	39.4		8.0	17.4	16.2	9.9	10.0	5.6	8.6	5.3	6	6	--	38	12

*** Primary Characterization Data ***

Pedon ID: S1970MT049003

( Lewis and Clark, Montana )

Print Date: Feb 16 2025 5:51AM

Sampled As	:	Sappington
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A3709

---

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	4B1c	3C2a1a
40A28571	0-10	Ap	S							9.2							0.48
40A28572	10-15	Bt	S	1.35	1.65	0.068			31.2	14.3				0.22			0.43
40A28573	15-27	Bk1	S	1.38	1.51	0.030		27.9	25.1	13.4				0.16			0.33
40A28574	27-52	Bk2	S	1.31	1.38	0.017		29.8	25.6	12.4				0.17			0.29
40A28575	52-87	Bk3	S	1.34	1.47	0.030			24.9	10.7				0.18			0.30
40A28576	87-130	C1	S	1.41	1.51	0.022		26.1	23.3	10.2				0.18			0.36
40A28577	130-180	C2	S	1.35	1.46	0.025		31.5	27.9	10.6				0.22			0.39

---

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 - - - - -)

6A1a

40A28571

0-10

Ap

S

1.31

40A28572

10-15

Bt

S

1.05

40A28573

15-27

Bk1

S

0.97

40A28574

27-52

Bk2

S

0.38

40A28575

52-87

Bk3

S

0.22

40A28576

87-130

C1

S

0.15

40A28577

130-180

C2

S

0.15

*** Primary Characterization Data ***

Pedon ID: S1970MT049003

( Lewis and Clark, Montana )

Print Date: Feb 16 2025 5:51AM

Sampled As	:	Sappington
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A3709

---

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				6E1b
40A28571	0-10	Ap	S		7.6	7.9				2
40A28572	10-15	Bt	S		7.5	7.6				1
40A28573	15-27	Bk1	S		7.8	8.1				31
40A28574	27-52	Bk2	S		8.0	8.3				39
40A28575	52-87	Bk3	S		8.5	8.6				29
40A28576	87-130	C1	S		8.5	8.5				20
40A28577	130-180	C2	S		8.3	8.4				17