Soil Data Explorer - KOLOB

Official Series Description

Lab Data Summary

Aggregate lab data for the KOLOB soil series. This aggregation is based on all pedons with a current taxon name of KOLOB, 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 KOLOB were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). 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
47	70C0055	S1970UT053010	Kolob	8	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	37.3858337,-112.9977798
n/a	83P0910	83UT021001	Kolob	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the KOLOB 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 KOLOB series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-02) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the KOLOB 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 2023-10-09).

Geomorphic description summaries for the KOLOB 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 2023-10-04).

Competing Series

Soil series competing with KOLOB share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-02) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the KOLOB 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 2023-10-09).

Geomorphic description summaries for the KOLOB 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 2023-10-04).

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

There are insufficient data to create the 3D flats position figure.

Soil series sharing subgroup-level classification with KOLOB, 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 2023-10-02).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. UT-2012-05-10-03 | Washington County Area - October 1977

   West to east cross section of the Washington County Area, showing the relationship of the soils on the landscape (Soil Survey of Washington County Area, Utah; October 1977).

Map Units

Map units containing KOLOB 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
Herm-Kolob families complex, 40 to 65 percent slopes	333C	7854	1414938	1jhc5	co654		1:24000
Kolob family, 5 to 40 percent slopes	348B	6330	1414969	1jhd5	co654		1:24000
Kolob-Duffymont families complex, 40 to 60 percent slopes	348C	4039	1414970	1jhd6	co654		1:24000
Herm-Fughes-Kolob family complex, 25 to 40 percent slopes	158	34861	509517	k361	co660	1994	1:24000
Kolob family, dry-Fughes complex, 5 to 45 percent slopes, extremely stony	165	12214	509527	k36c	co660	1994	1:24000
Godding-Kolob family-Delson complex, 25 to 65 percent slopes, extremely stony	150	10902	509509	k35s	co660	1994	1:24000
Godding-Kolob family-Delson complex, 5 to 25 percent slopes, very stony	149	7524	509508	k35r	co660	1994	1:24000
Shawa-Sandia family-Kolob family complex, 5 to 40 percent slopes	185	5545	509551	k374	co660	1994	1:24000
Fughes-Kolob family, warm complex, 5 to 45 percent slopes	146	3590	509503	k35l	co660	1994	1:24000
Shawa-Sandia family-Kolob family complex, 40 to 65 percent slopes	186	3062	509552	k375	co660	1994	1:24000
Herm-Kolob families complex, 40 to 65 percent slopes	333C	313	3176923	1jhc5	co661	1968	1:31680
Kolob family, 5 to 40 percent slopes	348B	38	3176965	1jhd5	co661	1968	1:31680
Kolob-Sandia association	KU	5658	55657	1vxd	nm600	1973	1:24000
Kolob-Rock outcrop association	KT	4589	55656	1vxc	nm600	1973	1:24000
Sandia-Kolob complex, 15 to 40 percent slopes	SBE	1760	55685	1vy9	nm600	1973	1:24000
Kolob stony loam	KS	1752	55655	1vxb	nm600	1973	1:24000
Kolob stony loam, cold variant, 15 to 40 percent slopes	KVE	1152	55658	1vxf	nm600	1973	1:24000
Kolob-Detra association, 2 to 40 percent slopes	397	9133	483926	j7kj	ut634	1997	1:24000
Paunsaugunt-Kolob gravelly loams, 10 to 40 percent slopes	444	3887	483982	j7mb	ut634	1997	1:24000
Zillion Family-Detra-Kolob Taxadjunct complex, 20 to 70 percent slopes	690375	169	3241237	2yqgs	ut634	1997	1:24000
Detra-Calcic Haplustalfs-Kolob Taxadjunct complex, 15 to 60 percent slopes	690345	92	3241235	2vb10	ut634	1997	1:24000
Kolob-Paunsaugunt complex, 20 to 60 percent slopes	KLG	2385	484757	j8fb	ut641	1971	1:24000
Kolob, stony-Posant families complex, 5 to 30 percent slopes	21	5597	512371	k653	ut646		1:24000
Kolob, stony, dry-Ashfork families complex, 3 to 30 percent slopes	10	4654	512362	k64t	ut646		1:24000
Kolob, stony-Dalcan-Detra families complex, 3 to 35 percent slopes	34	2975	512389	k65p	ut646		1:24000
Braziel-Kolob-Ricot families complex, cool, 5 to 45 percent slopes, stony	255	1030	512458	k67x	ut646		1:24000
Zillion Family-Detra-Kolob Taxadjunct complex, 20 to 70 percent slopes	690375	6063	3139231	2yqgs	ut690		1:24000
Detra-Calcic Haplustalfs-Kolob Taxadjunct complex, 15 to 60 percent slopes	690345	1959	2855895	2vb10	ut690		1:24000

Map of Series Extent

Approximate geographic distribution of the KOLOB 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 2023-10-04).