*** Supplementary Characterization Data ***

Pedon ID: 84MT015492

( Chouteau, Montana )

Print Date: Nov 13 2024 2:55PM

Sampled as on Nov 1, 1984:	Marias ; Fine, montmorillonitic, frigid Udorthentic Chromustert
Revised to correlated:	Marias ; Fine, smectitic, frigid Udorthentic Chromusterts

				United States Department of Agriculture
SSL	-	Project	RP85MT257   CHOUTEAU COUNTY	Natural Resources Conservation Service
	-	Site ID	S1984MT015492   Lat: 48° 4' 53.01" north  Long: 111° 19' 31.01" west  MLRA: 52	National Soil Survey Center
	-	Pedon No.	85P0838	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

---

Tier 1				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-	-20-	-21-	-22-	-23-	-24-	-25-
				(- - - - - - - - - - - - - - - - - - - - - - Engineering PSDA - - - - - - - - - - - - - - - - - - - - -)													(- - - - - Cumulative Curve Fractions - - - - -) (<75mm)								( Atter- )		( Gradation )
				Percentage Passing Sieve													USDA Less Than Diameters (mm) at								berg		Uni-	Cur-
	Depth			3	2	3/2	1	3/4	3/8	4	10	40	200	20	5	2	1.	.5	.25	.10	.05	60	50	10	LL	PI	fmty	vtur
Layer	(cm)	Horz	Prep	(-------------------Inches-------------------)						(---------Number---------)				(------Microns----)			(---------Millimeter----------)					(-----Percentile---)			(----%----)		CU	CC
85P04511	0-13	Ap1	S	100	100	100	100	100	100	100	100	100	97	83	66	56	100	100	99	98	96	--	0.002	--			9.6	0.5
85P04512	13-23	Ap2	S	100	100	100	100	100	100	100	100	100	98	84	67	56	100	100	99	98	97	--	0.002	--			9.2	0.6
85P04513	23-56	Bw1	S	100	100	100	100	100	100	100	100	100	98	83	67	56	100	100	100	99	97	--	0.002	--			9.5	0.6
85P04514	56-84	Bw2	S	100	100	100	100	100	100	100	100	100	98	82	66	55	100	100	100	99	97	--	0.002	--			10.2	0.5
85P04515	84-152	Bky	S	100	100	100	100	100	100	100	100	100	98	90	70	57	100	100	99	99	98	--	0.002	--			8.3	0.6

---

Tier 2				-26-	-27-	-28-	-29-	-30-	-31-	-32-	-33-	-34-	-35-	-36-	-37-	-38-	-39-	-40-	-41-	-42-	-43-	-44-	-45-	-46-	-47-	-48-	-49-	-50-
				(- - - - - - - - - - - - - - - - - - - - - - Weight Fractions - - - - - - - - - - - - - - - - - - - - -)														(- - - - - - - - - - - Weight Per Unit Volume (g cm-3 )- - - - - - - -)									(- - Void - -)
				Whole Soil (mm)								<75 mm Fraction						Whole Soil				<2 mm Fraction					Ratios
				>2	250	250	75	75	20	5		75	75	20	5			Soil Sur		Engineering		Soil Survey			Engineering		At 33 kPa
	Depth				-UP	-75	-2	-20	-5	-2	<2	-2	-20	-5	-2	<2		33	Oven	Moist	Satur	33	1500	Oven	Moist	Satur	Whole	<2
Layer	(cm)	Horz	Prep	(------------------- % of Whole Soil ------------------)								(--------- % of <75 mm ---------)						kPa	-dry		-ated	kPa	kPa	-dry		-ated	Soil	mm
													3B1	3B1	3B1
85P04511	0-13	Ap1	S	tr	--	--	--	--	tr	--	100	--	--	tr	tr	100		1.451
85P04512	13-23	Ap2	S	tr	--	--	--	--	tr	--	100	--	--	tr	--	100		1.451
85P04513	23-56	Bw1	S	--	--	--	--	--	--	--	100	--	--	tr	tr	100		1.451
85P04514	56-84	Bw2	S	--	--	--	--	--	--	--	100	--	--	--	tr	100		1.451
85P04515	84-152	Bky	S	tr	--	--	--	--	--	tr	100	--	--	--	tr	100		1.451

¹The whole-soil bulk density was not measured. It was calculated using 1.45 g/cc as the 1/3-bar bulk density of the less-than-2-mm fraction for mineral soils.

*** Supplementary Characterization Data ***

Pedon ID: 84MT015492

( Chouteau, Montana )

Print Date: Nov 13 2024 2:55PM

Sampled As	:	Marias		Fine, montmorillonitic, frigid Udorthentic Chromustert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  85P0838

---

Tier 3				-51-	-52-	-53-	-54-	-55-	-56-	-57-	-58-	-59-	-60-	-61-	-62-	-63-	-64-	-65-	-66-	-67-	-68-	-69-	-70-	-71-	-72-	-73-	-74-	-75-
				(- - - - - - - - - - - - - - - - - Volume Fractions - - - - - - - - - - - - - - - -)													C	(- - - - - - - Ratios To Clay - - - - - -)					(- - Linear Extensiblity - -)				(- - WRD - -)
				Whole Soil (mm) At 33 kPa													/N	<2 mm Fraction					Whole Soil		<2 mm		Whole	<2
				>2	250	250	75	75	20	5		2-	.05-	LT	Pores		Rat	Fine	CEC		1500	LEP	33 kPa		to %		Soil	mm
	Depth				-UP	-75	-2	-20	-5	-2	<2	.05	.002	.002	D	F	-io	Clay	Sum	NH4-	kPa	33	1500	Oven	1500	Oven
Layer	(cm)	Horz	Prep	(----------------------------- % of Whole Soil ---------------------------)															Cats	OAC	H2O	kPa	kPa	-dry	kPa	-dry	(---in3/in3---)
																					8D1
85P04511	0-13	Ap1	S	tr	--	--	--	--	tr	--	100	2	22	30	45						0.37
85P04512	13-23	Ap2	S	tr	--	--	--	--	tr	--	100	2	22	31	45						0.38
85P04513	23-56	Bw1	S	--	--	--	--	--	--	--	100	2	22	30	45						0.37
85P04514	56-84	Bw2	S	--	--	--	--	--	--	--	100	1	23	30	45						0.36
85P04515	84-152	Bky	S	tr	--	--	--	--	--	tr	100	1	22	31	45						0.34

---

Tier 4				-76-	-77-	-78-	-79-	-80-	-81-	-82-	-83-	-84-	-85-	-86-	-87-	-88-	-89-	-90-	-91-	-92-	-93-	-94-	-95-	-96-	-97-	-98-
				(- - - - - - - - - - - - - - - - - - - Weight Fractions - Clay Free - - - - - - - - - - - - - - - - - -)															Text	PSDA (mm)			pH	Elect.		Part-
				(--------------- Whole Soil ---------------)						(------------------- <2 mm Fraction -------------------)									-ure	Sand	Silt	Clay	Ca	Res-	Con-	-icle
				>2	75	20	2-	.05-	<	(------------- Sands -------------)					(--- Silts ---)		Cl		by	2-	.05-	<	Cl2	ist.	duct	Den-
	Depth				-20	-2	.05	.002	.002	VC	C	M	F	VF	C	F	ay		PSDA	.05	.002	.002	.01M	ohms	dS m-1	sity
Layer	(cm)	Horz	Prep	(- % of >2 mm Sand and Silt -)						(------------------% of Sand and Silt -------------)									<2 mm	(---- % of 2 mm ----)			(-------- <2 mm --------)			g cm-3
																			3A1a1a	3A1a1a	3A1a1a	3A1a1a	4C1a2a		8A3a
85P04511	0-13	Ap1	S				9	91	125		tr	1	3	4	30	61	125		sic	3.9	40.5	55.6	7.7
85P04512	13-23	Ap2	S				8	92	127		tr	1	2	4	29	63	127		sic	3.5	40.5	56.0	8.0
85P04513	23-56	Bw1	S				8	92	126			1	2	5	30	62	126		sic	3.4	40.9	55.7	8.1		0.42
85P04514	56-84	Bw2	S				6	94	122			1	1	4	35	59	122		sic	2.6	42.5	54.9	8.1		0.61
85P04515	84-152	Bky	S				6	94	132		1	1	2	2	17	78	132		sic	2.4	40.7	56.9	8.0		6.96