*** Primary Characterization Data ***

Pedon ID: 80MT015213

( Chouteau, Montana )

Print Date: Nov 13 2024 3:08PM

Sampled as on Apr 1, 1980:	Kobar ; Fine, montmorillonitic Borollic Camborthid
Revised to correlated:	Kobar ; Fine, smectitic, frigid Borollic Camborthids

				United States Department of Agriculture
SSL	-	Project	RP85MT257   CHOUTEAU COUNTY	Natural Resources Conservation Service
	-	Site ID	S1980MT015213   Lat: 47° 51' 26.00" north  Long: 110° 44' 15.01" west  MLRA: 52	National Soil Survey Center
	-	Pedon No.	85P0839	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
85P04516	Ap	Ap	0-15				SICL	SICL
85P04517	Bw	Bw	15-36				SICL	SIC
85P04518	Bk	Bk	36-53				SICL	SICL
85P04519	C	C	117-152				SICL	SICL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Clay, carbonate free, Weighted Average	14	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	2	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	14	% wt
Weighted averages based on control section: 25-100 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
85P04516	0-15	Ap	S	sicl	39.6	52.7	7.7			32.6	20.1	4.2	2.6	0.7	0.2	--	tr	--	--	4	--
85P04517	15-36	Bw	S	sic	42.7	53.6	3.7		2.9	34.9	18.7	2.3	1.2	0.2	--	--	--	tr	--	1	--
85P04518	36-53	Bk	S	sicl	36.1	50.7	13.2		1.4	28.6	22.1	7.1	4.7	1.2	0.2	--	--	--	--	6	--
85P04519	117-152	C	S	sicl	36.9	56.6	6.5		1.5	36.1	20.5	4.1	2.3	0.1	--	--	--	--	--	2	--

*** Primary Characterization Data ***

Pedon ID: 80MT015213

( Chouteau, Montana )

Print Date: Nov 13 2024 3:08PM

Sampled As	:	Kobar		Fine, montmorillonitic Borollic Camborthid
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  85P0839

---

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	%
										3C2a1a		3D1					8D1
85P04516	0-15	Ap	S							14.2		1.017					0.36
85P04517	15-36	Bw	S							14.2		1.021					0.33
85P04518	36-53	Bk	S							11.3		1.020					0.31
85P04519	117-152	C	S							13.5		1.031					0.37

---

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 - - - - -)

6A1c

85P04516

0-15

Ap

S

1.46

85P04517

15-36

Bw

S

0.90

85P04518

36-53

Bk

S

0.60

85P04519

117-152

C

S

0.57

---

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											8A	8D5	8A3a			5E
85P04517	15-36	Bw	S	3.5	1.7	0.3	tr											50.5	tr	0.51			tr
85P04518	36-53	Bk	S	2.6	1.6	0.6	--											45.7	tr	0.44			tr
85P04519	117-152	C	S	24.0	136.0	63.0	0.3											56.7	0.6	12.66			7

*** Primary Characterization Data ***

Pedon ID: 80MT015213

( Chouteau, Montana )

Print Date: Nov 13 2024 3:08PM

Sampled As	:	Kobar		Fine, montmorillonitic Borollic Camborthid
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  85P0839

---

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
					4C1a2a	4C1a2a	8C1b			6E1g
85P04516	0-15	Ap	S		7.5	7.7				--
85P04517	15-36	Bw	S		7.9	8.3	7.8			4
85P04518	36-53	Bk	S		8.0	8.4	7.9			7
85P04519	117-152	C	S		8.4	8.4	8.2			4