Soil Data Explorer - LOS OSOS

Official Series Description

Lab Data Summary

Aggregate lab data for the LOS OSOS soil series. This aggregation is based on all pedons with a current taxon name of LOS OSOS, 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 LOS OSOS 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
14	73C0035	S1973CA079007	LOS OSOS	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.5027771,-120.5027771
15	UCD5417017	54-CA-17-017x	LOS OSOS	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.8878593,-122.4927139
15	80P0065	77CA079004	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.308857,-120.6512527
15	19N0134	S2018CA079004	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.3406,-120.74317
15	19N0156	S2018CA079007	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.317364,-120.527571
15	19N0137	S2018CA079008	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.317421,-120.525931
15	19N0147	S2018CA079018	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.334507,-120.659067
15	19N0148	S2018CA079019	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.334777,-120.658965
15	19N0149	S2018CA079020	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.334764,-120.658802
15	19N0150	S2018CA079021	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.33545,-120.658198
15	20N0632	S2020CA079002	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.3155097961426,-120.649871826172
20	18N1799	S2018CA111002	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.233757019043,-118.800788879395
n/a	05N0840	CA097LoD-S12	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.2677611,-122.7956083
n/a	05N0842	CA097LsE-S14	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.2788889,-122.77635
n/a	05N0841	CAS097LoE-S13	Los Osos	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.2838194,-122.751925

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the LOS OSOS 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 LOS OSOS 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 LOS OSOS 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 LOS OSOS 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 LOS OSOS 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 LOS OSOS 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 LOS OSOS 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 flats position figure.

Soil series sharing subgroup-level classification with LOS OSOS, 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

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

1. CA-2012-05-08-17 | Alameda Area - March 1966

   The relationship of geologic formations, landforms, and soil series in the Alameda Area (Soil Survey of Alameda Area, California; March, 1966).

Map Units

Map units containing LOS OSOS 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
Los Osos clay loam, 30 to 50 percent slopes	LhF	31805	455819	2yrgf	ca013	1973	1:24000
Los Osos clay loam, 15 to 30 percent slopes	LhE	10120	455818	2yrgk	ca013	1973	1:24000
Los Osos-Los Gatos complex	Lk	4145	455821	h99x	ca013	1973	1:24000
Cut and fill land-Los Osos complex, 9 to 30 percent slopes	CnE	3595	455783	h98p	ca013	1973	1:24000
Los Osos clay loam, 50 to 75 percent slopes	LhG	1460	455820	2yrgh	ca013	1973	1:24000
Xerorthents-Los Osos complex, 30 to 50 percent slopes	158aw	1	843739	x9zd	ca013	1973	1:24000
Los Osos and Millsholm soils, 30 to 45 percent slopes, eroded	LuE2aa	1	843735	x9z8	ca013	1973	1:24000
Los Osos and Millsholm soils, 7 to 30 percent slopes	LuDaa	1	843734	x9z7	ca013	1973	1:24000
Los Osos silty clay loam, 30 to 45 percent slopes, eroded	LtE2aa	1	843733	x9z6	ca013	1973	1:24000
Los Osos silty clay loam, 7 to 30 percent slopes	LtDaa	1	843732	x9z5	ca013	1973	1:24000
Los Osos-Yorkville complex, 10 to 50 percent slopes	406mnf	35	2504876	2q42f	ca021	1961	1:20000
Los Osos-Bonnydoon complex, 30 to 50 percent slopes	142	12930	459434	hf2g	ca041	1979	1:24000
Los Osos-Bonnydoon complex, 15 to 30 percent slopes	141	5725	459433	hf2f	ca041	1979	1:24000
Los Osos-Bonnydoon complex, 5 to 15 percent slopes	140	2840	459432	hf2d	ca041	1979	1:24000
Los Osos-Urban land-Bonnydoon complex, 15 to 30 percent slopes	143	625	459435	hf2h	ca041	1979	1:24000
Los Osos-Urban land-Bonnydoon complex, 30 to 50 percent slopes	144	550	459436	hf2j	ca041	1979	1:24000
Nacimiento-Los Osos complex, 30 to 50 percent slopes, MLRA 15	NbF	34765	2747740	2s0pg	ca053	1972	1:24000
Los Osos clay loam, 30 to 50 percent slopes, cool	LmF	31345	455650	2yrgd	ca053	1972	1:24000
Nacimiento-Los Osos complex, 50 to 75 percent slopes, MLRA 15	NbG	23600	2747741	2tb75	ca053	1972	1:24000
Los Osos clay loam, 50 to 75 percent slopes, cool	LmG	11300	455651	2yrgg	ca053	1972	1:24000
Los Osos clay loam, 15 to 30 percent slopes, cool	LmE	6115	455649	2yrgj	ca053	1972	1:24000
Los Osos-Millsholm complex	Ln	2785	455652	h94g	ca053	1972	1:24000
Los Osos clay loam, 9 to 15 percent slopes	LmD	1315	455648	h94b	ca053	1972	1:24000
Dibble-Los Osos loams, 30 to 50 percent slopes, eroded	DbF2so	348	816081	wd66	ca055	1974	1:24000
Dibble-Los Osos clay loams, 30 to 50 percent slopes, eroded	DlF2so	263	816083	wd68	ca055	1974	1:24000
Dibble-Los Osos clay loams, 9 to 30 percent slopes	DlEso	110	816082	wd67	ca055	1974	1:24000
Dibble-Los Osos loams, 9 to 30 percent slopes	DbEso	50	816080	wd65	ca055	1974	1:24000
Los Osos clay loam, 30 to 50 percent slopes	LoFes	32	700545	2yrgf	ca069	1965	1:20000
Los Osos clay loam, 15 to 30 percent slopes	LoEes	4	700544	2yrgk	ca069	1965	1:20000
Los Osos loam, 15 to 30 percent slopes, moist	147	1500	455923	2yrg7	ca087	1976	1:24000
Los Osos loam, 5 to 15 percent slopes	146	696	455922	h9f5	ca087	1976	1:24000
Los Osos loam, 30 to 50 percent slopes, moist	148	645	455924	2yrg9	ca087	1976	1:24000
Los Osos clay loam, 50 to 75 percent slopes	LoGes	47	700552	2yrgh	ca087	1976	1:24000
Los Osos clay loam, 30 to 50 percent slopes	LoFes	41	700553	2yrgf	ca087	1976	1:24000
Dibble-Los Osos clay loams, 30 to 50 percent slopes, eroded	DlF2	18577	456083	h9lc	ca095	1969	1:24000
Dibble-Los Osos clay loams, 9 to 30 percent slopes	DlE	14137	456082	h9lb	ca095	1969	1:24000
Dibble-Los Osos loams, 30 to 50 percent slopes, eroded	DbF2	8618	456080	h9l8	ca095	1969	1:24000
Dibble-Los Osos loams, 9 to 30 percent slopes	DbE	4289	456079	h9l7	ca095	1969	1:24000
Dibble-Los Osos clay loams, 2 to 9 percent slopes	DlC	3631	456081	h9l9	ca095	1969	1:24000
Millsap-Los Osos complex, 2 to 9 percent slopes	MlC	2226	456095	h9lr	ca095	1969	1:24000
Dibble-Los Osos loams, 2 to 9 percent slopes	DbC	1090	456078	h9l6	ca095	1969	1:24000
Los Osos clay loam, thin solum, 30 to 50 percent slopes	LsF2	4811	459825	hfh2	ca097	1968	1:20000
Los Osos clay loam, 2 to 15 percent slopes	LoD	4138	459818	hfgv	ca097	1968	1:20000
Los Osos clay loam, 15 to 30 percent slopes, very rocky, MLRA 15	LoE	2514	459819	2tb86	ca097	1968	1:20000
Los Osos clay loam, 30 to 50 percent slopes, moist	LoF	1888	459820	2yrgc	ca097	1968	1:20000
Los Osos clay loam, 30 to 50 percent slopes, eroded, MLRA 15	LoF2	1750	459821	2w619	ca097	1968	1:20000
Los Osos clay loam, thin solum, 15 to 30 percent slopes	LsE	968	459823	hfh0	ca097	1968	1:20000
Los Osos clay loam, thin solum, 15 to 30 percent slopes, eroded	LsE2	968	459824	hfh1	ca097	1968	1:20000
Los Osos clay loam, thin solum, 5 to 15 percent slopes	LsD	653	459822	hfgz	ca097	1968	1:20000
Los Gatos-Los Osos complex, 30 to 75 percent slopes, eroded, MLRA 15	LpF2	40394	2747731	2tb6z	ca609	1963	1:20000
Los Osos silty clay loam, 30 to 45 percent slopes, eroded	LtE2	7636	456597	hb3y	ca609	1963	1:20000
Los Osos and Millsholm soils, 30 to 45 percent slopes, eroded	LuE2	5466	456600	hb41	ca609	1963	1:20000
Los Osos silty clay loam, 45 to 75 percent slopes, eroded	LtF2	4381	456598	hb3z	ca609	1963	1:20000
Los Osos and Millsholm soils, 7 to 30 percent slopes	LuD	4185	456599	hb40	ca609	1963	1:20000
Los Osos silty clay loam, 7 to 30 percent slopes	LtD	4034	456596	hb3x	ca609	1963	1:20000
Los Gatos-Los Osos complex, 30 to 45 percent slopes, eroded, thermic, MLRA 15	LpE2	1193	456593	2wv8s	ca609	1963	1:20000
Los Osos loam, seeped variant, 3 to 15 percent slopes	LsC	650	456595	hb3w	ca609	1963	1:20000
Los Osos-Millsholm complex, 30 to 50 percent slopes	123aw	266	801691	vx70	ca609	1963	1:20000
Los Osos clay loam, 30 to 50 percent slopes	LhFcc	212	801719	2yrgf	ca609	1963	1:20000
Los Osos clay loam, 15 to 30 percent slopes	LhEcc	135	1150451	2yrgk	ca609	1963	1:20000
Los Osos-Millsholm complex, 9 to 30 percent slopes	122aw	88	801690	vx6z	ca609	1963	1:20000
Los Osos silty clay loam, 9 to 30 percent slopes	120aw	31	801689	vx6y	ca609	1963	1:20000
Los Osos clay loam, 50 to 75 percent slopes	LhGcc	5	801720	2yrgh	ca609	1963	1:20000
Los Osos-Los Gatos complex	Lkcc	2	801721	vx7z	ca609	1963	1:20000
Los Osos loam, seeped variant, 3 to 15 percent slopes	LsCaa		801697	vx76	ca610	1975	1:24000
Los Osos silty clay loam, 7 to 30 percent slopes	LtDaa		801698	vx77	ca610	1975	1:24000
Los Osos and Millsholm soils, 7 to 30 percent slopes	LuDaa		801699	vx78	ca610	1975	1:24000
Los Osos and Millsholm soils, 30 to 45 percent slopes, eroded	LuE2aa		801700	vx79	ca610	1975	1:24000
Xerorthents-Los Osos complex, 30 to 50 percent slopes	158	3429	456711	hb7m	ca610	1975	1:24000
Los Osos-Millsholm complex, 9 to 30 percent slopes	122	1619	456675	hb6g	ca610	1975	1:24000
Los Osos-Millsholm complex, 30 to 50 percent slopes	123	932	456676	hb6h	ca610	1975	1:24000
Los Gatos-Los Osos complex, 50 to 75 percent slopes	119	483	456672	hb6c	ca610	1975	1:24000
Los Osos silty clay loam, 9 to 30 percent slopes	120	272	456673	hb6d	ca610	1975	1:24000
Los Osos-Millsholm complex, 50 to 75 percent slopes	124	258	456677	hb6j	ca610	1975	1:24000
Los Osos silty clay loam, 30 to 50 percent slopes	121	239	456674	hb6f	ca610	1975	1:24000
Los Osos clay loam, 30 to 50 percent slopes	LoF	4840	457019	2yrgf	ca646	1967	1:24000
Los Osos clay loam, 50 to 75 percent slopes	LoG	4105	457020	2yrgh	ca646	1967	1:24000
Los Osos clay loam, 15 to 30 percent slopes	LoE	2009	457018	2yrgk	ca646	1967	1:24000
Los Gatos-Los Osos complex, 45 to 75 percent slopes, eroded	LpF2aa	159	699384	rgrs	ca646	1967	1:24000
Los Gatos-Los Osos complex, 30 to 45 percent slopes, eroded, thermic, MLRA 15	LpE2	62	699388	2wv8s	ca646	1967	1:24000
Los Osos loam, seeped variant, 3 to 15 percent slopes	LsCaa	35	699382	rgrq	ca646	1967	1:24000
Los Osos-Lodo complex, 30 to 75 percent slopes	167	19525	457139	hbpf	ca664	1977	1:24000
Los Osos-Diablo complex, 30 to 50 percent slopes	165	12325	457137	hbpc	ca664	1977	1:24000
Los Osos loam, 30 to 50 percent slopes	161	10085	457133	2yrgb	ca664	1977	1:24000
Los Osos loam, 15 to 30 percent slopes	160	8125	457132	2yrg8	ca664	1977	1:24000
Los Osos-Diablo complex, 15 to 30 percent slopes	164	6485	457136	hbpb	ca664	1977	1:24000
Los Osos-Diablo complex, 9 to 15 percent slopes	163	4770	457135	hbp9	ca664	1977	1:24000
Los Osos loam, 9 to 15 percent slopes	159	3515	457131	hbp5	ca664	1977	1:24000
Los Osos-Diablo complex, 5 to 9 percent slopes	162	2355	457134	hbp8	ca664	1977	1:24000
Los Osos variant clay loam, 15 to 50 percent slopes	168	2120	457140	hbpg	ca664	1977	1:24000
Los Osos loam, 5 to 9 percent slopes	158	1680	457130	hbp4	ca664	1977	1:24000
Los Osos-Lodo complex, 15 to 30 percent slopes	166	740	457138	hbpd	ca664	1977	1:24000
Nacimiento-Los Osos complex, 9 to 30 percent slopes	179	53095	457282	hbv1	ca665	1977	1:24000
Nacimiento-Los Osos complex, 30 to 50 percent slopes	180	38070	457283	hbv2	ca665	1977	1:24000
Los Osos-Lodo complex, 50 to 75 percent slopes	163	10885	457266	hbtj	ca665	1977	1:24000
Nacimiento-Los Osos complex, 50 to 75 percent slopes	181	9130	457284	hbv3	ca665	1977	1:24000
Los Osos-Rock outcrop complex, 30 to 50 percent slopes	164	2315	457267	hbtk	ca665	1977	1:24000
Los Osos variant clay loam, 30 to 50 percent slopes	190	764	463735	hkk6	ca666	1983	1:24000
Los Osos variant-Rock outcrop-Lodo variant complex, 15 to 50 percent slopes	191	527	463736	hkk7	ca666	1983	1:24000
Los Osos variant clay loam, 30 to 50 percent slopes	149	1334	463853	hkp0	ca670	1977	1:24000
Los Osos-San Benito complex, 30 to 45 percent slopes	LsF	11330	3356380	2zwtb	ca672	1966	1:20000
Los Osos-San Benito complex, 15 to 30 percent slopes	LsE	2979	3422839	31d63	ca672	1966	1:20000
Los Osos clay loam, 30 to 75 percent slopes	LoG	2481	457425	hbzn	ca672	1966	1:20000
Los Osos-San Benito complex, 30 to 75 percent slopes, severely eroded	LsG3	1515	3422840	31d64	ca672	1966	1:20000
Los Osos clay loam, 15 to 30 percent slopes	LoE	1013	457424	2yrgk	ca672	1966	1:20000
Los Osos clay loam, 15 to 30 percent slopes, eroded	LgE2	0	3422862	2zwsz	ca672	1966	1:20000
Los Osos clay loam, 30 to 50 percent slopes, eroded	LgF2	7260	3356355	2zwt0	ca673	1974	1:24000
Los Osos-Maymen complex, 50 to 75 percent slopes	LhG	5328	457616	hc5t	ca673	1974	1:24000
Los Osos clay loam, 15 to 30 percent slopes, eroded	LgE2	1634	3356354	2zwsz	ca673	1974	1:24000
Los Osos-San Benito complex, 15 to 30 percent slopes	LsE	537	3422849	31d63	ca673	1974	1:24000
Los Osos-San Benito complex, 30 to 75 percent slopes, severely eroded	LsG3	360	3422850	31d64	ca673	1974	1:24000
Los Osos-San Benito complex, 30 to 45 percent slopes	LsF	11	3356357	2zwtb	ca673	1974	1:24000
Los Osos clay loam, warm, 20 to 50 percent slopes	LoF	2397	457725	2y8sw	ca674	1968	1:24000
Los Osos clay loam, 15 to 30 percent slopes, eroded	LoE2	1600	3356369	2zwsz	ca674	1968	1:24000
Los Osos clay loam, warm, 9 to 15 percent slopes, eroded	LoD2	402	457723	2y8t0	ca674	1968	1:24000
Linne-Los Osos-Haploxerepts association, 30 to 75 percent slopes	330	2	735081	snx9	ca676	1975	1:24000
Linne-Los Osos, warm-Calcic Haploxerepts association, 15 to 65 percent slopes	330	7005	469936	2y8sx	ca692	2001	1:24000
Urban land-Linne-Los Osos, warm complex, 0 to 30 percent slopes	334	912	2403875	2y8ss	ca692	2001	1:24000
Los Osos clay loam, warm, 20 to 50 percent slopes	350	350	469941	2y8sw	ca692	2001	1:24000
Los Osos-Yorkville complex, 10 to 50 percent slopes	406	15120	2747824	2q1zk	ca709	2010	1:24000
Los Osos gravelly loam, 30 to 50 percent slopes	401	2156	2747823	2q1zj	ca709	2010	1:24000
Los Osos-Modesto-Chualar families association, 20 to 70 percent slopes	22	56427	465288	hm59	ca772	1981	1:24000
Rincon-Modesto-Los Osos families association, 30 to 60 percent slopes	42	13681	465310	hm60	ca772	1981	1:24000
Los Osos-Nacimiento families association, 15 to 45 percent slopes	23	4369	465289	hm5b	ca772	1981	1:24000

Map of Series Extent

Approximate geographic distribution of the LOS OSOS 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).