Soil Data Explorer - STEIGER

Official Series Description

Lab Data Summary

Aggregate lab data for the STEIGER soil series. This aggregation is based on all pedons with a current taxon name of STEIGER, and applied along 1-cm thick depth slices. Solid lines are the slice-wise median, bounded on either side by the interval defined by the slice-wise 5th and 95th percentiles. The median is the value that splits the data in half. Five percent of the data are less than the 5th percentile, and five percent of the data are greater than the 95th percentile. Values along the right hand side y-axis describe the proportion of pedon data that contribute to aggregate values at this depth. For example, a value of "90%" at 25cm means that 90% of the pedons correlated to STEIGER were used in the calculation. Source: KSSL snapshot (updated 2025-01-21). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

Pedons used in the lab summary:

MLRA	Lab ID	Pedon ID	Taxonname	CI	NSSL / NASIS Reports	Link To SoilWeb GMap
6	04N0391	03OR035017	Steiger	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	43.2262192,-121.8061218
6	87P0519	87OR035001	Steiger	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	43.5333328,-121.4583359
n/a	10N0769	S09OR037003	Steiger	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	72C0049	S1972OR035003	Steiger	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	42.7125015,-121.9649963
n/a	72C0050	S1972OR035004	Steiger	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	42.771389,-122.0347214

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the STEIGER soil series. Monthly precipitation (PPT) and potential evapotranspiration (PET) have been estimated from the 50th percentile of gridded values (PRISM 1981-2010) overlapping with the extent of SSURGO map units containing each series as a major component. Monthly PET values were estimated using the method of Thornthwaite (1948). These (and other) climatic parameters are calculated with each SSURGO refresh and provided by the fetchOSD function of the soilDB package. Representative water storage values (“AWC” in the figures) were derived from SSURGO by taking the 50th percentile of profile-total water storage (sum[awc_r * horizon thickness]) for each soil series. Note that this representation of “water storage” is based on the average ability of most plants to extract soil water between 15 bar (“permanent wilting point”) and 1/3 bar (“field capacity”) matric potential. Soil moisture state can be roughly interpreted as “dry” when storage is depleted, “moist” when storage is between 0mm and AWC, and “wet” when there is a surplus. Clearly there are a lot of assumptions baked into this kind of monthly water balance. This is still a work in progress.

Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the STEIGER series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2025-10-03), parsed OSD records (updated 2025-09-23) and snapshot of SC database (updated 2025-12-01).

Select annual climate data summaries for the STEIGER series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2025-10-08).

Geomorphic description summaries for the STEIGER series and siblings. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. Proportions can be interpreted as an aggregate representation of geomorphic membership. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Small Shannon entropy values suggest relatively consistent geomorphic association, while larger values suggest lack thereof. Source: SSURGO component records (updated 2025-10-06).

Competing Series

Soil series competing with STEIGER share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2025-09-23) and snapshot of the SC database (updated 2025-12-01).

Select annual climate data summaries for the STEIGER series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2025-10-08).

Geomorphic description summaries for the STEIGER series and competing. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Proportions can be interpreted as an aggregate representation of geomorphic membership. Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values close to 0 represent soil series with relatively consistent geomorphic association, while values close to 1 suggest lack thereof. Source: SSURGO component records (updated 2025-10-06).

There are insufficient data to create the 3D terrace figure.

Soil series sharing subgroup-level classification with STEIGER, arranged according to family differentiae. Hovering over a series name will print full classification and a small sketch from the OSD. Source: snapshot of SC database (updated 2025-12-01).

Block Diagrams

No block diagrams are available.

Map Units

Map units containing STEIGER as a major component. Limited to 250 records.

Map Unit Name	Symbol	Map Unit Area (ac)	Map Unit Key	National Map Unit Symbol	Soil Survey Area	Publication Date	Map Scale
Lapine-Steiger complex, wet, 15 to 50 percent slopes	1303b	18244	3462340	31v8n	or605		1:24000
Lapine-Steiger complex, wet, 3 to 15 percent slopes	1303	11796	3462339	31v8l	or605		1:24000
Steiger ashy loamy coarse sand, 3 to 15 percent slopes	1345	3399	3462398	31vbl	or605		1:24000
Steiger-Silverdollar-Cryaquolls, rarely flooded, complex, 0 to 5 percent slopes	1337	2141	3462389	31vb8	or605		1:24000
Steiger ashy loamy coarse sand, cold, 0 to 5 percent slopes	1348	1428	3462403	31vbs	or605		1:24000
Steiger ashy loamy coarse sand, dry, 3 to 15 percent slopes	1345a	1331	3462399	31vbm	or605		1:24000
Steiger ashy loamy coarse sand, 30 to 50 percent slopes	1347	555	3462402	31vbr	or605		1:24000
Steiger paragravelly ashy loamy coarse sand, 3 to 15 percent slopes	1345b	512	3462400	31vbn	or605		1:24000
Steiger ashy loamy coarse sand, 15 to 30 percent slopes	1346	495	3462401	31vbq	or605		1:24000
Steiger paragravelly ashy loamy coarse sand, cold, 0 to 5 percent slopes	1348a	352	3462404	31vbt	or605		1:24000
Steiger loamy coarse sand, low, 0 to 3 percent slopes	131A	20486	63450	240s	or620	1992	1:24000
Steiger loamy coarse sand, 0 to 15 percent slopes	129C	19672	63442	240j	or620	1992	1:24000
Steiger loamy coarse sand, high elevation, 3 to 15 percent slopes	130C	5879	63446	240n	or620	1992	1:24000
Steiger loamy coarse sand, high elevation, 15 to 30 percent slopes	130D	2366	63447	240p	or620	1992	1:24000
Steiger loamy coarse sand, high elevation, 30 to 50 percent slopes	130E	1055	63448	240q	or620	1992	1:24000
Steiger ashy loamy coarse sand, cool, 0 to 3 percent slopes	608	11003	1690108	1tqpm	or635	2006	1:24000
Steiger ashy loamy coarse sand, low landscape position, 0 to 3 percent slopes	694	5691	1690193	1tqsc	or635	2006	1:24000
Steiger ashy loamy coarse sand, 0 to 3 percent slopes	607	4096	1690107	1tqpl	or635	2006	1:24000
Steiger ashy loamy coarse sand, 3 to 15 percent slopes	609	3069	1690109	1tqpn	or635	2006	1:24000
Steiger ashy loamy coarse sand, high elevation, 15 to 30 percent slopes	693	397	1690192	1tqsb	or635	2006	1:24000
Steiger ashy loamy coarse sand, 0 to 15 percent slopes	692	327	1690191	1tqs9	or635	2006	1:24000
Steiger-Rock outcrop complex, 30 to 65 percent south slopes	611	269	1690111	1tqpq	or635	2006	1:24000
Steiger-Rock outcrop complex, 30 to 65 percent north slopes	610	122	1690110	1tqpp	or635	2006	1:24000
Lapine, high precipitation, cool-Steiger, high precipitation complex, 0 to 8 percent slopes	1032	4825	3477494	2dycx	or640	1977	1:20000
Steiger, moderately deep dense substratum-Lapine complex, 0 to 8 percent slopes	1014	3203	3477463	2w0s	or640	1977	1:20000
Steiger ashy loamy sand, warm, 1 to 8 percent slopes	1020	1737	3477552	2y5kn	or640	1977	1:20000
Steiger, warm-Suncreek complex, 0 to 10 percent slopes	1021	857	3477551	2y5km	or640	1977	1:20000
Lapine-Steiger-Wuksi complex, high elevation, 2 to 25 percent slopes	31	1639	627822	p29b	or682	2001	1:24000
Steiger, moderately deep dense substratum-Maklak, cold complex 1 to 4 percent slopes	1019	42081	3478477	2lbvw	or683	2025	1:24000
Steiger, moderately deep dense substratum-Lapine complex, 0 to 8 percent slopes	1014	38624	3478552	2w0s	or683	2025	1:24000
Lapine, high precipitation, cool-Steiger, high precipitation complex, 0 to 8 percent slopes	1032	443	3478473	2dycx	or683	2025	1:24000

Map of Series Extent

Approximate geographic distribution of the STEIGER soil series. To learn more about how this distribution was mapped, or to compare this soil series extent to others, use the Series Extent Explorer (SEE) application. Source: generalization of SSURGO geometry (updated 2025-10-04).