IDENTIFIERS

Current Taxon Name (Soil Name): Chacuaco

OSD

Series Extent

User Site ID: 85CO628008

User Pedon ID: 85CO628008

Vegetation Plot ID: 85CO628008

Lab Information:

Certified Lab Pedon Description - no

Lab Pedon # - 87P0832

NCSS Pedon Lab Data NASIS Record ID - 60127

Print Date: 11/21/2024

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 37.0362222

Std. Longitude: -103.3338889

Datum: WGS84

Township: 34 S.

Range: 53 W.

Section: 35

PLSS Details: 1000 feet north and 150 feet east of the southwest corner

Location Description: 1000 feet north and 150 feet east of the southwest corner of section 35, T.34S., R.53W.

Map Unit: CD—Chacuaco-Dalerose complex, 2 to 7 percent slopes

State: Colorado

County: CO071—Las Animas

MLRA: 70—Pecos-Canadian Plains and Valleys

Non-MLRA Soil Survey Area: CO628—Las Animas County Area, Colorado, Parts of Huerfano and Las Animas Counties

7.5 Minute USGS Quad: 37103-A3—Dennis Canyon, Colorado

PEDON

Describers Name: LAN

Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Calcidic Argiustolls

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 419

Correlated Information:

Soil Name - Chacuaco

PSC - 25 to 51 cm.

Classificaton Date - 6/12/2012

Soil Taxonomic Edition - eighth edition

Moisture Class - ustic

Moisture Subclass - aridic (torric)

Sampled As Information:

Soil Name - Chacuaco

Classificaton Date - 5/7/1985

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: eolian deposits and/or residuum weathered from sandstone

Landscape: plains

Landform: interfluve

Slope Position: middle third

Runoff: low

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: indurated slight weathered sandstone, unspecified with <10

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/7/1985 (actual site observation date)

Air Photo ID: 1-72

Plant Association Name: loamy

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - rangeland, grassland

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Horizon Lab Results - 1
Horizon	Top Depth	Bottom Depth	Sample ID	Data Collector	Total Clay	CaCO3 Clay	Total Silt	Fine Silt	Co. Silt	Total Sand	Total Sand Method	VC Sand	Co. Sand	Med. Sand	Fine Sand	VF Sand	VF Sand Method	Texture Class - Field Lab	Rubbed Fiber	Unrubbed Fiber	pH H2O
	cm	cm			%	%	%	%	%	%		%	%	%	%	%			%	%
A A AB AB Bt Bt Bk Bk	0 0 15 15 25 25 51 51	— 13 — 25 — 51 — 76	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —

Pedon Horizon Lab Results - 2
Horizon	Top Depth	Bottom Depth	Sample ID	pH CaCl2	pH NaF	pH Ox	Delta pH	LL	PL	PI	Atter. Samp. Cond.	COLE	Pot. Acidity	Ca + Mg - Meh 2	K	Ca + Mg - Sat. Paste	KCl Extract. Acidity	Base Sat. - Meh 2	CEC-7	CEC-8.2
	cm	cm						%	%	%		cm/cm	meq/100g	cmol(+)/kg	cmol(+)/kg	mmol(+)/l	cmol(+)/kg	%	cmol(+)/kg	cmol(+)/kg
A A AB AB Bt Bt Bk Bk	0 0 15 15 25 25 51 51	— 13 — 25 — 51 — 76	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —		— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —

Pedon Horizon Lab Results - 3
Horizon	Top Depth	Bottom Depth	Sample ID	ECEC	Phosphate P	NO3-N	EC	EC Method	EC 1:5 by volume	CaCO3 Equiv.	Equiv. Gypsum	Na	SAR	Gypsum Req.	Humic Color	Fulvic Color	Humic + Fulvic Color	Al	PI	Pyro. Hue	PyrO. Value	Pyro. Chroma
	cm	cm		cmol(+)/kg	mg/kg	mg/kg	dS/m		dS/m	%	%	mmol(+)/l	%	L-pcu/g	L-pcu/g	L-pcu/g	%
A A AB AB Bt Bt Bk Bk	0 0 15 15 25 25 51 51	— 13 — 25 — 51 — 76	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	0 0 5 5 8 8 37 37	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —	— — — — — — — —

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
ARLOG BOGR2 ELEL5 GUSA2 JUMO PLJA SPCR YUCCA	Aristida longispica var. geniculata Bouteloua gracilis Elymus elymoides Gutierrezia sarothrae Juniperus monosperma Pleuraphis jamesii Sporobolus cryptandrus Yucca	slimspike threeawn blue grama squirreltail broom snakeweed oneseed juniper James' galleta sand dropseed yucca	— — — — — — — —	— — — — — — — —	— — — — — — — —

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, lithic	indurated	76 -	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon argillic horizon calcic horizon lithic contact	0—25 15—51 51—76 76—152	—- —- —- —-

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
2	—	—	1679	—	45	381	—	—	10.6	—	—	11.7	—	—	—	—	—	—	—

A—0 to 13 centimeters (0.0 to 5.1 inches); brown (10YR 4/3), very dark grayish brown (10YR 3/2), moist; loam; 36 percent sand; 42 percent silt; 22 percent clay; moderate fine and medium granular structure; soft, very friable, slightly sticky, slightly plastic; 5.0 fine roots; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.5, hellige-truog; clear smooth boundary.; moist when described; observed in trench

AB—15 to 25 centimeters (5.9 to 9.8 inches); very dark grayish brown (10YR 3/2), brown (10YR 4/3), moist; loam; 31 percent sand; 43 percent silt; 26 percent clay; weak fine subangular blocky, and moderate medium granular structure; soft, very friable, slightly sticky, slightly plastic; 1.0 fine roots; 10 percent clay films on faces of peds; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 7.9, hellige-truog; clear smooth boundary.; moist when described;. patchy - phpvsfiid 111150; patchy - phpvsfiid 111150

Bt—25 to 51 centimeters (9.8 to 20.1 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 4/4), moist; clay loam; 31 percent sand; 42 percent silt; 27 percent clay; moderate fine and medium subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; 1.0 fine roots; 40 percent clay films on faces of peds; 5 percent fine irregular lime masses throughout; 5 percent by volume nonflat subangular indurated 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; abrupt smooth boundary.; dry when described;. continuous - phpvsfiid 111151; continuous - phpvsfiid 111151

Bk—51 to 76 centimeters (20.1 to 29.9 inches); very pale brown (10YR 8/3), very pale brown (10YR 7/3), moist; very gravelly loam; 64 percent sand; 28 percent silt; 8 percent clay; massive; soft, very friable, nonsticky, nonplastic; 10 percent by volume nonflat subangular indurated 75-162-250 millimeter unspecified fragments and 30 percent by volume nonflat subangular indurated 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 7.9, hellige-truog; abrupt wavy boundary.; dry when described;

R—76 to 152 centimeters (29.9 to 59.8 inches); unweathered bedrock; fragments.