*** Primary Characterization Data ***

Pedon ID: 91CO037001

( Eagle, Colorado )

Print Date: Jan 31 2025 12:05AM

Sampled as on May 30, 1991:	Tellura ; Clayey-skeletal, montmorillonitic Argic Cryoborolls
Revised to correlated on Sep 1, 1992:	(unnamed) ; Fine-loamy, mixed, superactive Argic Cryoboroll

				United States Department of Agriculture
SSL	-	Project	CP91CO239   HOLY CROSS RANGER DISTRICT	Natural Resources Conservation Service
	-	Site ID	S1991CO037001   Lat: 39° 45' 55.00" north  Long: 106° 37' 1.00" west  MLRA: 48A	National Soil Survey Center
	-	Pedon No.	91P1039	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
91P06755	A1	A1	0-5				L	L
91P06756	A2	A2	5-22				L	L
91P06757	ABt	ABt	22-36				CL	CL
91P06758	Bt1	Bt1	36-46				CL	CL
91P06759	Bt2	Bt2	46-66				C	CL
91P06760	Bt3	Bt3	66-89				C	CL
91P06761	Bt4	Bt4	89-112				CL	L
91P06762	BC	BC	112-132				SCL	L
91P06763	C	C	132-155				SCL	L

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.82	(NA)
Clay, carbonate free, Weighted Average	30	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	43	% wt
Volume, >2mm, Weighted Average	36	% vol
Clay, total, Weighted Average	30	% wt
LE, Whole Soil, Summed to 1m	2	cm/m
Weighted averages based on control section: 36-86 cm

*** Primary Characterization Data ***

Pedon ID: 91CO037001

( Eagle, Colorado )

Print Date: Jan 31 2025 12:05AM

Sampled As	:	Tellura		Clayey-skeletal, montmorillonitic Argic Cryoborolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P1039

---

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
91P06755	0-5	A1	S	l	21.3	39.2	39.5	10.3		19.0	20.2	21.3	8.1	3.7	3.6	2.8	7	5	5	32	27
91P06756	5-22	A2	S	l	25.0	42.4	32.6	12.3		20.6	21.8	21.2	6.2	2.0	1.6	1.6	4	8	4	26	40
91P06757	22-36	ABt	S	cl	28.2	42.6	29.2	17.5		21.9	20.7	17.6	6.0	2.1	2.0	1.5	3	6	9	28	39
91P06758	36-46	Bt1	S	cl	33.5	36.8	29.7	18.8		20.2	16.6	16.1	7.7	1.4	2.1	2.4	4	12	18	43	50
91P06759	46-66	Bt2	S	cl	30.8	36.3	32.9	20.5		20.2	16.1	17.2	8.8	2.4	2.3	2.2	4	6	6	29	36
91P06760	66-89	Bt3	S	cl	28.4	37.6	34.0	16.7		22.4	15.2	15.9	8.4	3.3	3.5	2.9	5	16	26	57	59
91P06761	89-112	Bt4	S	l	25.0	36.9	38.1	13.7		20.9	16.0	17.4	11.0	2.7	3.9	3.1	4	5	8	34	38
91P06762	112-132	BC	S	l	21.1	40.4	38.5			23.2	17.2	17.0	11.1	4.1	4.0	2.3	11	20	13	56	57
91P06763	132-155	C	S	l	20.1	40.5	39.4			25.4	15.1	18.3	10.1	4.7	4.0	2.3	9	26	4	52	44

---

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		3D1		4C1		8D1	8D1
91P06755	0-5	A1	S	0.88	0.98	0.032			26.2	13.4		1.020		0.10		1.02	0.63
91P06756	5-22	A2	S	1.23	1.36	0.026		29.3	27.4	13.1		1.020		0.13		0.85	0.52
91P06757	22-36	ABt	S	1.39	1.47	0.014			21.0	11.4		1.021		0.10		0.72	0.40
91P06758	36-46	Bt1	S	1.49	1.66	0.023			21.3	12.5		1.028		0.09		0.69	0.37
91P06759	46-66	Bt2	S	1.61	1.82	0.030			20.3	11.4		1.030		0.11		0.80	0.37
91P06760	66-89	Bt3	S	1.58	1.70	0.013			22.3	11.1		1.031		0.10		0.92	0.39
91P06761	89-112	Bt4	S	1.54	1.67	0.020			21.1	9.3		1.028		0.13		0.94	0.37
91P06762	112-132	BC	S	1.52	1.60	0.010			21.2	8.8		1.022		0.11		0.93	0.42
91P06763	132-155	C	S	1.49	1.56	0.011			21.8	9.4		1.022		0.13		0.90	0.47

*** Primary Characterization Data ***

Pedon ID: 91CO037001

( Eagle, Colorado )

Print Date: Jan 31 2025 12:05AM

Sampled As	:	Tellura		Clayey-skeletal, montmorillonitic Argic Cryoborolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P1039

---

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 - - - - -)
				6A2d				6A1c		6C2b	6G7a	6D2a								6C8a	6G10
91P06755	0-5	A1	S	3.77				3.71		1.6	0.1	tr								0.1	0.1
91P06756	5-22	A2	S	2.37				2.69		1.7	0.1	tr								0.1	0.1
91P06757	22-36	ABt	S	1.40				1.55		1.8	0.1	tr								0.1	0.1
91P06758	36-46	Bt1	S	0.86				0.88		2.1	0.2	tr								0.1	tr
91P06759	46-66	Bt2	S	0.50				0.51		2.1	0.1	tr								tr	tr
91P06760	66-89	Bt3	S	0.31				0.36		2.2	0.1	tr								tr	tr
91P06761	89-112	Bt4	S	0.26				0.26		2.0	0.1	tr								tr	tr
91P06762	112-132	BC	S	0.24				0.17		2.0	0.1	tr								tr	--
91P06763	132-155	C	S	0.34				0.12		1.7	0.1	tr								--	tr

---

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		6H5a			5A3a	5A8b			5C3	5C1
91P06755	0-5	A1	S	17.6*	4.0	tr	1.3	22.9	3.4			26.3	21.7			87	100
91P06756	5-22	A2	S	16.7*	3.6	0.1	1.4	21.8	3.8			25.6	21.2			85	100
91P06757	22-36	ABt	S	15.1*	4.0	0.1	1.1	20.3	1.9			22.2	20.2			91	100
91P06758	36-46	Bt1	S	16.0	5.9	0.1	0.6	22.6	2.6			25.2	23.1			90	98
91P06759	46-66	Bt2	S	17.3*	7.2	0.1	0.3	24.9	2.2			27.1	24.5			92	100
91P06760	66-89	Bt3	S	17.9*	8.3	0.2	0.3	26.7	3.0			29.7	26.0			90	100
91P06761	89-112	Bt4	S	15.9*	8.2	0.2	0.3	24.6	0.7			25.3	23.6			97	100
91P06762	112-132	BC	S	16.0*	8.5	0.3	0.2		0.2				19.6			99	100
91P06763	132-155	C	S	33.1*	9.3	0.3	tr						18.0			100	100

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

*** Primary Characterization Data ***

Pedon ID: 91CO037001

( Eagle, Colorado )

Print Date: Jan 31 2025 12:05AM

Sampled As	:	Tellura		Clayey-skeletal, montmorillonitic Argic Cryoborolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P1039

---

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 - -)

%

91P06755

0-5

A1

S

--

91P06756

5-22

A2

S

tr

91P06757

22-36

ABt

S

tr

91P06758

36-46

Bt1

S

tr

91P06759

46-66

Bt2

S

tr

91P06760

66-89

Bt3

S

1

91P06761

89-112

Bt4

S

1

91P06762

112-132

BC

S

2

91P06763

132-155

C

S

2

---

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				6E1g
91P06755	0-5	A1	S		6.0	6.2
91P06756	5-22	A2	S		6.1	6.6
91P06757	22-36	ABt	S		6.1	6.7
91P06758	36-46	Bt1	S		6.2	6.9
91P06759	46-66	Bt2	S		6.3	7.0
91P06760	66-89	Bt3	S		6.5	7.3
91P06761	89-112	Bt4	S		6.6	7.4
91P06762	112-132	BC	S		7.4	7.9				tr
91P06763	132-155	C	S		7.7	8.3				1

*** Primary Characterization Data ***

Pedon ID: 91CO037001

( Eagle, Colorado )

Print Date: Jan 31 2025 12:05AM

Sampled As	:	Tellura		Clayey-skeletal, montmorillonitic Argic Cryoborolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P1039

---

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									7C3								tion
Layer	(cm)	Horz	ion	( - - - - - - - - - peak size - - - - - - - - - - )					(- - - - - - - - - % - - - - - - - - - -)				(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)							mg g-1
91P06759	46.0-66.0	Bt2	tcly	KK 3	MI 3	MT 3	VR 2	MM 1						21	7.9			2.1
				QZ 1

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MI Mica	MM Montmorillonite-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

*** Primary Characterization Data ***

Pedon ID: 91CO037001

( Eagle, Colorado )

Print Date: Jan 31 2025 12:05AM

Sampled As	:	Tellura		Clayey-skeletal, montmorillonitic Argic Cryoborolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P1039

---

Sand - Silt Mineralogy (2.0-0.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Optical

EGME

Inter

Tot Re

Grain Count

Retn

preta

Depth

Fract

7B1a2

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

91P06759

46.0-66.0

Bt2

vfs

75

QZ 73

OW 11

FK 8

MS 3

FP 3

QC 1

BT 1

HN 1

RA 1

GA tr

OP tr

PR tr

NX tr

ZR tr

TM tr

FRACTION INTERPRETATION:
vfs - Very Fine Sand 0.05-0.1 mm

MINERAL INTERPRETATION:
BT Biotite	FK Potassium Feldspar	FP Plagioclase Feldspar	GA Glass Aggregates	HN Hornblende
MS Muscovite	NX Non-Crystalline	OP Opaques	OW Other Weatherable Minerals	PR Pyroxene
QC Clay-Coated Quartz	QZ Quartz	RA Resistant Aggregates	TM Tourmaline	ZR Zircon