IDENTIFIERS

Current Taxon Name (Soil Name): Fort

OSD

Series Extent

User Site ID: 06CO628010

User Pedon ID: 06CO628010

User Site Association ID: lan628-2006.4

Transect:

User Transect ID - 69TCO628237-FcC

Transect Stop Number - 9

Lab Information:

Certified Lab Pedon Description - no

Lab Pedon # - 06N0659

NCSS Pedon Lab Data NASIS Record ID - 17811

Print Date: 6/3/2024

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: 37.2786111

Std. Longitude: -104.3066667

Datum: WGS84

Township: 32 S.

Range: 62 W.

Section: 11

PLSS Details: 50 feet south 1600 feet west of the northeast corner

Map Unit: FcC—Fort loam, 1 to 5 percent slopes, cool

State: Colorado

County: CO071—Las Animas

MLRA: 69—Upper Arkansas Valley Rolling Plains

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

7.5 Minute USGS Quad: 37104-C3—Earl, Colorado

PEDON

Describers Name: LAN

Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Ustic Haplargids

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Pedon #: 1059

Sampled As Information:

Soil Name - Fort

Taxonomic Class - Fine-loamy, mixed, superactive, mesic Ustic Haplargids

PSC - 15 to 66 cm.

Classificaton Date - 6/14/2006

Soil Taxonomic Edition - eighth edition

Moisture Class - aridic (torric)

Moisture SUBClass - ustic

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: eolian deposits over alluvium derived from sedimentary rock

Landscape: plains

Landform: hillslope

Hill Slope Profile: backslope

Slope Position: upper third

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: convex

Runoff: medium

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 6/14/2006 (actual site observation date)

Air Photo ID: 11678-276

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

Current Weather - partly cloudy

Site Erosion Accelerated: wind erosion

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 Bt Btk1 Btk1 Btk2 Btk2 2Bk1 2Bk1 2Bk2 2Bk2 2Bk3 2Bk3	0 12 39 39 56 56 86 86 117 117 147 147	12 39 — 56 — 86 — 117 — 147 — 180	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —

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 Bt Btk1 Btk1 Btk2 Btk2 2Bk1 2Bk1 2Bk2 2Bk2 2Bk3 2Bk3	0 12 39 39 56 56 86 86 117 117 147 147	12 39 — 56 — 86 — 117 — 147 — 180	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —		— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —

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 Bt Btk1 Btk1 Btk2 Btk2 2Bk1 2Bk1 2Bk2 2Bk2 2Bk3 2Bk3	0 12 39 39 56 56 86 86 117 117 147 147	12 39 — 56 — 86 — 117 — 147 — 180	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	0 0 4 4 4 4 9 9 6 6 2 2	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon	0—12 12—86	—- —-

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
5	—	—	1722	—	30	330	—	—	11	—	—	—	—	—	—	—	—	—	—

A—0 to 12 centimeters (0.0 to 4.7 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; sandy loam; 16 percent clay; weak fine granular structure; soft, very friable, nonsticky, nonplastic; 5.0 very fine and fine roots throughout; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.4, phenol red; abrupt smooth boundary.; slightly moist when described;

Bt—12 to 39 centimeters (4.7 to 15.4 inches); brown (7.5YR 4/4), brown (7.5YR 4/3) crushed, moist; sandy clay loam; 28 percent clay; moderate fine prismatic parts to moderate fine and medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 3.0 fine roots throughout; 30 percent distinct clay films on all faces of peds; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.6, phenol red; clear smooth boundary.; moist when described;

Btk1—39 to 56 centimeters (15.4 to 22.0 inches); light brown (7.5YR 6/3), brown (7.5YR 4/3), moist; sandy clay loam; 25 percent clay; moderate medium prismatic parts to moderate medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots throughout; 25 percent distinct clay films on all faces of peds; 2 percent fine distinct irregular carbonate masses throughout; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 7.9, phenol red; clear smooth boundary.; slightly moist when described;

Btk2—56 to 86 centimeters (22.0 to 33.9 inches); light brown (7.5YR 6/4), brown (7.5YR 4/3), moist; sandy clay loam; 24 percent clay; moderate medium prismatic parts to moderate medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 2.0 very fine roots throughout; 40 percent distinct clay films on all faces of peds; 7 percent medium and coarse distinct irregular carbonate masses throughout; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, thymol-blue; clear smooth boundary.; dry when described;

2Bk1—86 to 117 centimeters (33.9 to 46.1 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; silt loam; 22 percent clay; weak coarse prismatic parts to weak coarse subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 1.0 very fine roots throughout; 17 percent fine distinct irregular carbonate masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, thymol-blue; gradual smooth boundary.; dry when described;

2Bk2—117 to 147 centimeters (46.1 to 57.9 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; loam; 22 percent clay; weak coarse prismatic parts to weak coarse subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 1.0 very fine roots throughout; 12 percent fine distinct irregular carbonate masses throughout and 3 percent fine distinct threadlike carbonate masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, thymol-blue; clear wavy boundary.; dry when described;

2Bk3—147 to 180 centimeters (57.9 to 70.9 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; loam; 20 percent clay; weak coarse prismatic parts to weak medium subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 1.0 very fine roots throughout; 3 percent fine faint irregular carbonate masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2, thymol-blue.; dry when described;