IDENTIFIERS

Current Taxon Name (Soil Name): Tombstone

OSD

Series Extent

User Site ID: S1969AZ003001

User Pedon ID: S1969AZ003001

Vegetation Plot ID: S1969AZ003001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 69C0207

NCSS Pedon Lab Data NASIS Record ID - 43780

Print Date: 2/16/2025

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: 31.7316666

Std. Longitude: -110.0180588

Datum: WGS84

Township: 19S

Range: 23E

Section: 32

PLSS Details: 2,640 feet east and 500 feet north of southwest corner

Location Description: south side of road. About 5-1/2 miles NE of Tombstone along Bennett Ranch Road.

State: Arizona

County: AZ003—Cochise

PEDON

Describers Name: Y. H. Havens and D. M. Hendricks

Current Taxonomic Class: Loamy-skeletal, mixed, superactive, thermic Ustic Haplocalcids

Current Taxon Kind: series

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 1

Correlated Information:

Soil Name - Tombstone

PSC - 25 to 100 cm.

Classificaton Date - 6/15/2007

Moisture Class - ustic

Moisture Subclass - ustic

Sampled As Information:

Soil Name - Hathaway

Classificaton Date - 9/25/1969

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Drainage Class: well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 9/25/1969 (actual site observation date)

Surface Cover Properties:

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
AGSM BOER4 EPVI EPVI GUTIE PAAR5 YUCCA ZIAC ZIAC	Agropyron smithii Bouteloua eriopoda Ephedra viridis Ephedra viridis Gutierrezia Parthenium argentatum Yucca Zinnia acerosa Zinnia acerosa	— black grama mormon tea mormon tea snakeweed guayule yucca desert zinnia desert zinnia	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —

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
7	—	—	1410	—		356	—	—	17.2	—	—	—	—	—	—	—	—	—	—

A11—0 to 3 centimeters (0.0 to 1.2 inches); grayish brown (10YR 5/2), dark brown (10YR 3/3), moist; gravelly sandy loam; weak thick platy structure; slightly hard, very friable, nonsticky, slightly plastic; 3.0 very fine and fine roots; 21.0 very fine and fine vesicular and 0.5 very fine tubular pores; 1 percent by volume 75-162-250 millimeter unspecified fragments and 40 percent by volume 2-39-75 millimeter unspecified fragments; strong effervescence; moderately alkaline, pH 8.1, thymol-blue; abrupt smooth boundary. Lab sample # 69C01101; dry when described;

A12—3 to 25 centimeters (1.2 to 9.8 inches); grayish brown (10YR 5/2), dark brown (10YR 3/3), moist; gravelly sandy loam; weak fine and medium granular structure; slightly hard, friable, slightly sticky, slightly plastic; 21.0 very fine and fine roots and 0.5 medium and coarse roots; 0.5 fine tubular and 3.0 fine interstitial pores; 40 percent by volume 2-39-75 millimeter unspecified fragments; strong effervescence; moderately alkaline, pH 8.2, thymol-blue; clear smooth boundary. Lab sample # 69C01102; dry when described;

C1CA—25 to 51 centimeters (9.8 to 20.1 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; gravelly loam; light gray (10YR 7/2) and 21 percent white (10YR 8/1) fine distinct mottles; massive; hard when dry, friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots and 0.5 medium and coarse roots; 3.0 fine interstitial pores; 1 percent by volume 75-162-250 millimeter unspecified fragments and 30 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.1, thymol-blue; gradual wavy boundary. Lab sample # 69C01103; dry when described;

C2CA—51 to 76 centimeters (20.1 to 29.9 inches); very pale brown (10YR 8/2) and light gray (10YR 7/2), very pale brown (10YR 7/3) and brown (10YR 5/3), moist; very gravelly loam; massive; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots; 3.0 fine interstitial pores; 1 percent by volume 75-162-250 millimeter unspecified fragments and 60 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.2, thymol-blue; gradual irregular boundary. Lab sample # 69C01104; dry when described;

C3CA—76 to 102 centimeters (29.9 to 40.2 inches); very pale brown (10YR 8/3) and light gray (10YR 7/2), very pale brown (10YR 7/3) and brown (10YR 5/3), moist; very gravelly loam; massive; hard when dry, friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots; 3.0 fine interstitial pores; light reddish brown (5YR 6/4) and reddish brown (5YR 4/4), moist,; 55 percent by volume 2-?-250 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.2, thymol-blue; gradual irregular boundary. Lab sample # 69C01105; dry when described;. this horizon has pockets and discontinuous layers of light reddish brown (5YR 6/4) gravelly sandy clay loam soil material which is slightly effervescent, reddish brown (5YR 4/4) moist; discontinuous - phpvsfiid 197370; discontinuous - phpvsfiid 197370

C4CA—102 to 119 centimeters (40.2 to 46.9 inches); very pale brown (10YR 8/2) and light gray (10YR 7/2), light gray (10YR 7/2) and brown (10YR 5/3), moist; very cobbly loam; massive; slightly hard, friable, slightly sticky, slightly plastic; 0.5 very fine and fine roots; 3.0 fine interstitial pores; light reddish brown (5YR 6/4) and yellowish red (5YR 4/6), moist,; 70 percent by volume 2-?-75 millimeter unspecified fragments; violent effervescence; slightly alkaline, pH 7.6, bromthymol blue; abrupt irregular boundary. Lab sample # 69C01106; dry when described;. with tongues of light reddish brown (5YR 6/4) gravelly sandy clay loam soil material in tongues, yellowish red (5YR 4/6) moist.

2B2TCAB—103 to 137 centimeters (40.6 to 53.9 inches); light reddish brown (5YR 6/4), yellowish red (5YR 4/6), moist; very gravelly sandy clay loam; light brownish gray (10YR 6/2) and 3 percent light gray (10YR 7/2) fine distinct mottles; weak medium subangular blocky, and massive; hard when dry, friable, slightly sticky, slightly plastic; 0.5 very fine roots; 0.5 fine interstitial and tubular pores; 10 percent clay films on faces of peds and in pores; 60 percent by volume 2-39-75 millimeter unspecified fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue. Lab sample # 69C01107; dry when described;