IDENTIFIERS

Current Taxon Name (Soil Name): Continental

OSD

Series Extent

User Site ID: S1968AZ023001

User Pedon ID: S1968AZ023001

Vegetation Plot ID: S1968AZ023001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 68C0140

NCSS Pedon Lab Data NASIS Record ID - 43592

Print Date: 3/2/2025

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: 31.7047215

Std. Longitude: -111.0855560

Datum: WGS84

Township: 20S

Range: 12E

Section: 11

PLSS Details: 1.2 miles west-southwest of Amado School. 100 feet south of intersection of two ranch trails. Approximately 2900 feet north, 2700 feet west of southeast corner

Location Description: Photo AMS-581.

State: Arizona

County: AZ023—Santa Cruz

Non-MLRA Soil Survey Area: AZ667—Santa Cruz and Parts of Cochise and Pima Counties, Arizona

PEDON

Describers Name: Richardson and Havens

Current Taxonomic Class: Fine-loamy, mixed, thermic Typic Haplargids

Current Taxon Kind: series

Pedon Type: taxadjunct to the series

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 1

Sampled As Information:

Soil Name - Continental

Taxonomic Class - Fine-loamy, mixed, thermic Typic Haplargids

PSC - 8 to 58 cm.

Classificaton Date - 10/9/1968

Moisture Class - aridic (torric)

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landform: fan

Runoff: medium

Drainage Class: well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 10/9/1968 (actual site observation date)

Air Photo ID: AMS-581

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
ARIST ARIST BORO2 BORO2 ISTE2 SETAR SETAR	Aristida Aristida Bouteloua rothrockii Bouteloua rothrockii Isocoma tenuisecta Setaria Setaria	threeawn threeawn Rothrock's grama Rothrock's grama burroweed bristlegrass bristlegrass	— — — — — — —	— — — — — — —	— — — — — — —

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	—	—	975	—	90	305	—	—	17.8	—	—	—	—	—	—	—	—	—	—

A1—0 to 3 centimeters (0.0 to 1.2 inches); brown (7.5YR 5/4), reddish brown (5YR 4/3), moist; sandy loam; thin platy parts to weak fine granular structure; soft, very friable, nonsticky, nonplastic; 3.0 fine roots; 21.0 fine interstitial pores; 10 percent by volume 2-?-75 millimeter unspecified fragments; noneffervescent; neutral, pH 7.0, bromthymol blue; abrupt smooth boundary. Lab sample # 68C01007; dry when described;

A—0 to 38 centimeters (0.0 to 15.0 inches); fragments. Lab sample # 68C01016; dry when described;. 0-15 inch samples of 10 pedons selected at 10-foot intervals along a NS, 100-foot transect near backhoe pit.

B1—3 to 8 centimeters (1.2 to 3.1 inches); reddish brown (5YR 5/4), dark reddish brown (5YR 3/4), moist; sandy loam; weak medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 21.0 very fine and fine roots; 0.5 fine tubular pores; 10 percent by volume 2-39-75 millimeter unspecified fragments; noneffervescent; slightly alkaline, pH 7.5, bromthymol blue; clear wavy boundary. Lab sample # 68C01008; dry when described;

B21T—8 to 30 centimeters (3.1 to 11.8 inches); reddish brown (2.5YR 4/4), dark reddish brown (2.5YR 3/4), moist; gravelly clay loam; weak fine and medium subangular blocky structure; hard when dry, friable, moderately sticky, moderately plastic; 3.0 very fine and fine roots; 3.0 very fine and fine tubular and 3.0 fine pores; 10 percent clay films on faces of peds and in pores; 20 percent by volume 2-?-20 millimeter unspecified fragments; noneffervescent; moderately alkaline, pH 8.0, thymol-blue; clear wavy boundary. Lab sample # 68C01009; dry when described;

B22T—30 to 53 centimeters (11.8 to 20.9 inches); reddish brown (2.5YR 4/4), dark red (2.5YR 3/6), moist; gravelly clay; moderate fine and medium subangular blocky structure; hard when dry, friable, moderately sticky, moderately plastic; 3.0 very fine and fine roots; 3.0 very fine and fine tubular and 3.0 fine pores; 30 percent clay films on faces of peds and in pores; 35 percent by volume 2-?-20 millimeter unspecified fragments; slight effervescence; moderately alkaline, pH 8.2, thymol-blue; clear wavy boundary. Lab sample # 68C01010; dry when described;

B23TCA—53 to 76 centimeters (20.9 to 29.9 inches); reddish brown (2.5YR 4/4), yellowish red (5YR 4/6), moist; clay; white (5YR 8/1) and pink (5YR 7/3) mottles; massive parts to weak medium subangular blocky; hard when dry, friable, moderately sticky, moderately plastic; 3.0 very fine and fine roots; 0.5 medium tubular and 3.0 fine pores; 10 percent clay films on faces of peds and in pores; 40 percent by volume 2-39-75 millimeter unspecified fragments; strong effervescence; moderately alkaline, pH 8.2, thymol-blue; clear wavy boundary. Lab sample # 68C01011; dry when described;

B24TCA—76 to 99 centimeters (29.9 to 39.0 inches); reddish brown (2.5YR 4/4), red (2.5YR 4/6), moist; gravelly clay; pink (5YR 7/3) and 3 percent white (5YR 8/1) medium distinct mottles; massive parts to weak medium subangular blocky; hard when dry, friable, moderately sticky, moderately plastic; 3.0 very fine and fine roots; 0.5 medium tubular and 3.0 fine pores; 10 percent clay films on faces of peds and in pores; 40 percent by volume 2-39-75 millimeter unspecified fragments; strong effervescence; moderately alkaline, pH 8.2, thymol-blue; clear wavy boundary. Lab sample # 68C01012; dry when described;

B3CA—99 to 132 centimeters (39.0 to 52.0 inches); reddish yellow (5YR 6/6), light reddish brown (5YR 6/4), moist; gravelly clay loam; 21 percent reddish yellow (5YR 6/6) medium and coarse distinct mottles; massive; hard when dry, friable, moderately sticky, moderately plastic; 0.5 fine roots; 0.5 medium tubular and 3.0 fine pores; 10 percent clay films on faces of peds and in pores; 45 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.2, thymol-blue; clear wavy boundary. Lab sample # 68C01013; dry when described;

C1CA—132 to 193 centimeters (52.0 to 76.0 inches); pink (5YR 7/3), reddish brown (5YR 5/4), moist; very gravelly sandy loam; massive; hard when dry, friable, slightly sticky, nonplastic; 0.5 fine roots; 3.0 very fine and fine and 0.5 medium tubular pores; 55 percent by volume 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.2, thymol-blue; clear wavy boundary. Lab sample # 68C01014; dry when described;

C2CA—193 to 218 centimeters (76.0 to 85.8 inches); pink (7.5YR 7/4), brown (7.5YR 5/4), moist; very gravelly sandy loam; massive; hard when dry, friable, nonsticky, nonplastic; 55 percent by volume 2-39-75 millimeter unspecified fragments; strong effervescence; moderately alkaline, pH 8.2, thymol-blue. Lab sample # 68C01015; dry when described;