IDENTIFIERS

Current Taxon Name (Soil Name): Baca

OSD

Series Extent

User Site ID: 86CO628002

User Pedon ID: 86CO628002

Vegetation Plot ID: 86CO628002

Lab Information:

Certified Lab Pedon Description - no

Lab Pedon # - 87P0834

NCSS Pedon Lab Data NASIS Record ID - 60129

Print Date: 11/11/2024

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: 37.2527222

Std. Longitude: -103.5296389

Datum: WGS84

Township: 32 S.

Range: 55 W.

Section: 13

PLSS Details: 2200 feet east and 2000 feet north of SW corner

Location Description: 2200 feet east and 2000 feet north of SW corner of section 13, T. 32 S., R. 55 W..

Map Unit: BaA—Baca silt loam, 0 to 3 percent slopes

State: Colorado

County: CO071—Las Animas

MLRA: 67B—Central High Plains, Southern Part

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

7.5 Minute USGS Quad: 37103-B5—Tobe, Colorado

PEDON

Describers Name: LAN

Current Taxonomic Class: Fine, smectitic, mesic Aridic Haplustalfs

Current Taxon Kind: series

Pedon Type: TUD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 463

Correlated Information:

Soil Name - Baca

PSC - 41 to 173 cm.

Classificaton Date - 6/12/2012

Soil Taxonomic Edition - eighth edition

Moisture Class - ustic

Moisture Subclass - aridic (torric)

Sampled As Information:

Soil Name - Baca

Classificaton Date - 9/9/1986

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: loess

Landscape: plains

Landform: plain

Hill Slope Profile: toeslope

Slope Position: upper third

Runoff: very low

Drainage Class: well

Flooding: rare flooding

Ponding: none ponding

Bedrock: mixed

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 9/9/1986 (actual site observation date)

Air Photo ID: 30-E

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			%	%	%	%	%	%		%	%	%	%	%			%	%
Bt2 Bt2 Btk Btk BCk BCk Bk1 Bk1 Bk2 Bk2 Bk3 Bk3 Bk4 Bk4 Crky Crky	33 33 53 53 69 69 94 94 119 119 168 168 211 211 264 264	— 53 — 69 — 94 — 119 — 168 — 211 — 264 — 320	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —

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
Bt2 Bt2 Btk Btk BCk BCk Bk1 Bk1 Bk2 Bk2 Bk3 Bk3 Bk4 Bk4 Crky Crky	33 33 53 53 69 69 94 94 119 119 168 168 211 211 264 264	— 53 — 69 — 94 — 119 — 168 — 211 — 264 — 320	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —		— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —

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	%
Bt2 Bt2 Btk Btk BCk BCk Bk1 Bk1 Bk2 Bk2 Bk3 Bk3 Bk4 Bk4 Crky Crky	33 33 53 53 69 69 94 94 119 119 168 168 211 211 264 264	— 53 — 69 — 94 — 119 — 168 — 211 — 264 — 320	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	5 5 6 6 9 9 8 8 14 14 40 40 33 33 6 6	— — — — — — — — — — — — — — 12 —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
ARLOG BOGR2 GUSA2 PASM	Aristida longispica var. geniculata Bouteloua gracilis Gutierrezia sarothrae Pascopyrum smithii	slimspike threeawn blue grama broom snakeweed western wheatgrass	— — — —	— — — —	— — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
argillic horizon	41—173	—-

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	—	—	1756	—	90	381	—	—	11.1	—	—	12.8	—	—	—	—	—	—	—

A—0 to 8 centimeters (0.0 to 3.1 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; silt loam; 21 percent clay; weak fine granular structure; soft, friable, nonsticky, nonplastic; moderate permeability; 7.0 very fine and fine roots throughout; fragments; noneffervescent, by hcl, 1n; neutral, pH 7.2, hellige-truog; clear smooth boundary. Lab sample # 87-5-1; moist when described; observed in trench

AB—8 to 15 centimeters (3.1 to 5.9 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; silt loam; 24 percent clay; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 0.5 very fine to medium roots throughout; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.4, hellige-truog; clear smooth boundary. Lab sample # 87-5-2; moist when described;

Bt1—15 to 33 centimeters (5.9 to 13.0 inches); brown (10YR 5/3), dark brown (10YR 3/3) and brown (10YR 4/3) crushed, moist; silty clay; 45 percent clay; strong medium prismatic parts to strong medium angular blocky structure; extremely hard, very firm, moderately sticky, moderately plastic; moderately slow permeability; 0.5 very fine to medium roots throughout; 30 percent distinct , moist, clay films throughout; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary. Lab sample # 87-5-3; dry when described;. patchy - phpvsfiid 111111; patchy - phpvsfiid 111111

Bt2—33 to 53 centimeters (13.0 to 20.9 inches); brown (10YR 5/3), brown (10YR 4/3), moist; silty clay; 41 percent clay; strong medium prismatic parts to strong medium angular blocky structure; extremely hard, very firm, moderately sticky, moderately plastic; moderately slow permeability; 0.5 very fine and fine roots throughout; 30 percent distinct , dry, clay films on faces of peds; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; clear smooth boundary. Lab sample # 87-5-4; dry when described;. patchy - phpvsfiid 111112; patchy - phpvsfiid 111112

Btk—53 to 69 centimeters (20.9 to 27.2 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; silty clay loam; 38 percent clay; moderate fine and medium subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; moderately slow permeability; 0.5 very fine roots in cracks; 20 percent faint , dry, clay films on faces of peds; 1 percent medium distinct spherical lime masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; clear smooth boundary. Lab sample # 87-5-5; dry when described;. patchy - phpvsfiid 111113; patchy - phpvsfiid 111113

BCk—69 to 94 centimeters (27.2 to 37.0 inches); pale brown (10YR 6/3) exterior, brown (10YR 5/3) exterior, moist; silty clay loam; 30 percent clay; weak fine subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderately slow permeability; 0.5 very fine roots in cracks; 15 percent medium distinct spherical lime masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; clear smooth boundary. Lab sample # 87-5-6; dry when described;

Bk1—94 to 119 centimeters (37.0 to 46.9 inches); brown (7.5YR 5/4) exterior, brown (7.5YR 4/4) exterior, moist; silty clay loam; 32 percent clay; massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 1 percent fine distinct spherical lime masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; gradual wavy boundary. Lab sample # 87-5-7; dry when described;

Bk2—119 to 168 centimeters (46.9 to 66.1 inches); strong brown (7.5YR 5/6) exterior, brown (7.5YR 5/4) exterior, moist; silt loam; 22 percent clay; massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 1 percent fine faint spherical lime masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; gradual wavy boundary. Lab sample # 87-5-8; dry when described;

Bk3—168 to 211 centimeters (66.1 to 83.1 inches); pink (7.5YR 8/4) exterior, pink (7.5YR 7/4) exterior, moist; loam; 22 percent clay; massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 30 percent very coarse and extremely coarse distinct spherical lime masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; gradual wavy boundary. Lab sample # 87-5-9; dry when described;

Bk4—211 to 264 centimeters (83.1 to 103.9 inches); pink (7.5YR 7/4) exterior, reddish yellow (7.5YR 6/6) exterior, moist; clay loam; 30 percent clay; massive; slightly hard, friable, moderately sticky, moderately plastic; moderately slow permeability; 3 percent very coarse and extremely coarse distinct spherical lime masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; clear irregular boundary. Lab sample # 87-5-10; dry when described;

Crky—264 to 320 centimeters (103.9 to 126.0 inches); pink (7.5YR 7/4) exterior, light brown (7.5YR 6/4) exterior, moist; silt loam; 25 percent clay; massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 12 percent fine distinct irregular gypsum masses throughout and 1 percent medium distinct spherical lime masses throughout; 40 percent by volume flat angular moderately coherent cemented 2-4-10 millimeter shale, unspecified fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 87-5-11; dry when described;