IDENTIFIERS

Current Taxon Name (Soil Name): Bighams

OSD

Series Extent

User Site ID: S2012AZ005005

User Pedon ID: S2012AZ005005

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - KSSL

Lab Pedon # - 12N7970

NCSS Pedon Lab Data NASIS Record ID - 55391

Print Date: 2/17/2025

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: 35.5757790

Std. Longitude: -111.4436417

Datum: WGS84

Township: 25N

Range: 9E

Section: 4

Map Unit: 105—Flaco-Pocum complex, 1 to 3 percent slopes

State: Arizona

County: AZ005—Coconino

MLRA: 35—Colorado Plateau

Non-MLRA Soil Survey Area: AZ631—Coconino County Area, Arizona, Central Part

PEDON

Describers Name: H. Hosler

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

Current Taxon Kind: series

Pedon Type: representative pedon for component

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Sampled As Information:

Soil Name - Flaco

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

PSC - 25 to 64 cm.

Classificaton Date - 5/23/2012

Soil Taxonomic Edition - eleventh edition

Moisture Class - aridic (torric)

Moisture SUBClass - ustic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: fine-loamy alluvium derived from volcanic and sedimentary rock

Landform: terrace

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: linear

Runoff: very low

Drainage Class: excessively

Flooding: none flooding

Ponding: none ponding

Bedrock: indurated limestone, unspecified at 64cm

Geology: Fossil Mountain member of the Permian Kaibab Formation formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/23/2012 (actual site observation date)

Surface Cover Properties:

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 A Bw Bw Bw Bk1 Bk1 Bk1 Bk2 Bk2 Bk2	0 0 0 5 5 5 15 15 15 36 36 36	5 5 5 15 15 15 36 36 36 69 69 69	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —

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 A Bw Bw Bw Bk1 Bk1 Bk1 Bk2 Bk2 Bk2	0 0 0 5 5 5 15 15 15 36 36 36	5 5 5 15 15 15 36 36 36 69 69 69	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —		— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —

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 A Bw Bw Bw Bk1 Bk1 Bk1 Bk2 Bk2 Bk2	0 0 0 5 5 5 15 15 15 36 36 36	5 5 5 15 15 15 36 36 36 69 69 69	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	0 — — 3 — — 12 — — 15 — —	— — 0 — 0 — — — 0 — 0 —	— — — — — — — — — — — —	— 1 — — — 1 — 1 — — — 2	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —	— — — — — — — — — — — —

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, lithic	indurated	64 -	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
calcic horizon	15—64	—-

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	152	—	1620	—	300	305	—	150	—	—	—	—	—	—	—	—	—	—	—

A—0 to 5 centimeters (0.0 to 2.0 inches); dark brown (7.5YR 3/2), black (7.5YR 2.5/1), moist; sand; 95 percent sand; 3 percent clay; structureless single grain; loose, loose, nonsticky, nonplastic; 3.0 very fine roots throughout; 5.0 interstitial pores; 10 percent by volume nonflat subrounded indurated 2-39-75 millimeter cinders fragments; noneffervescent, by hcl, 1n; moderately alkaline, pH 8.0, cresol red; clear smooth boundary. Lab sample # 12N02841; observed in pit, small

Bw—5 to 15 centimeters (2.0 to 5.9 inches); brown (7.5YR 4/4), brown (7.5YR 4/3), moist; sandy clay loam; 55 percent sand; 23 percent clay; weak thin platy structure; slightly hard, friable, slightly sticky, slightly plastic; 5.0 very fine roots throughout; 3.0 very fine dendritic tubular pores; 10 percent by volume nonflat subrounded indurated 2-39-75 millimeter unspecified fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.0, cresol red; abrupt smooth boundary. Lab sample # 12N02842; observed in pit, small

Bk1—15 to 36 centimeters (5.9 to 14.2 inches); strong brown (7.5YR 5/6), strong brown (7.5YR 4/6), moist; sandy clay loam; 50 percent sand; 30 percent clay; moderate medium subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 5.0 very fine roots throughout and 0.5 medium roots throughout; 5.0 very fine dendritic tubular pores; 2 percent carbonate masses in matrix and carbonate, finely disseminated throughout; 10 percent by volume nonflat subrounded indurated 2-39-75 millimeter unspecified fragments; strong effervescence, by hcl, 1n; strongly alkaline, pH 8.6, thymol-blue; clear wavy boundary. Lab sample # 12N02843; observed in pit, small

Bk2—36 to 69 centimeters (14.2 to 27.2 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; gravelly sandy clay loam; 55 percent sand; 25 percent clay; moderate medium subangular blocky structure; slightly hard, friable, moderately sticky, slightly plastic; 5.0 very fine roots throughout and 1.0 medium roots throughout; 3.0 very fine dendritic tubular pores; carbonate, finely disseminated throughout and 5 percent carbonate masses in matrix; 15 percent by volume nonflat subrounded indurated 2-39-75 millimeter unspecified fragments; violent effervescence, by hcl, 1n; strongly alkaline, pH 9.0, thymol-blue; abrupt wavy boundary. Lab sample # 12N02844; observed in pit, small

R—69 to 94 centimeters (27.2 to 37.0 inches); bedrock; fragments.; observed in pit, small