Soil series profile
Miles soil series
Miles is a well drained soil with a fine sandy loam surface, mapped on 1,438,412 acres in 45 counties across 2 states. Hydrologic group B.
- Drainage class
- Well drained >99% of mapped acres
- Hydrologic group
- B 97% of mapped acres
- Typical topsoil pH
- 7.0 neutral · range 7.0–7.0
- Mapped area
- 1.4M acres in 45 counties, 2 states
Typical Miles profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–10 in (A) | Fine sandy loam | 7.0 | 13% | 71% | 0.75% |
| 10–37 in (Bt) | Sandy clay loam | 7.5 | 28% | 55% | 0.25% |
| 37–70 in (Btk) | Sandy clay loam | 7.5 | 28% | 55% | 0.25% |
| 70–80 in (Bk) | Sandy clay loam | 7.9 | 24% | 59% | 0.25% |
What this means
What Miles soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Miles soils is neutral: pH 7.0, the range most vegetables, flowers and lawn grasses prefer.
Sandy topsoil covers 97% of mapped Miles acres. It drains fast and warms early in spring, but dries out and loses nutrients quickly: mulch, compost and steady watering help. The most common surface texture is fine sandy loam (69% of mapped Miles acres).
>99% of mapped Miles acres is moderately well to excessively drained, which suits most garden plants.
For lawns and yards
Most land is in hydrologic groups B and C, where rain soaks in at a moderate pace.
For a septic system
For conventional septic absorption fields, NRCS rates 28% of the acres in mapped Miles soils very limited, 69% somewhat limited and 0% not limited (3% not rated, such as urban land, pits or water).
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Miles soil is found
Mapped acres
Miles is mapped in Texas and Oklahoma.
| County | Acres | Share of county land |
|---|---|---|
| Motley County, TX | 130,205 | 20.6% |
| Donley County, TX | 111,180 | 18.7% |
| Dickens County, TX | 110,947 | 19.1% |
| Mitchell County, TX | 101,329 | 17.5% |
| Collingsworth County, TX | 99,648 | 16.9% |
| Wilbarger County, TX | 83,634 | 13.8% |
| Cottle County, TX | 80,895 | 14.0% |
| Garza County, TX | 65,208 | 11.4% |
| Knox County, TX | 60,576 | 11.1% |
| Kent County, TX | 59,223 | 10.3% |
| Scurry County, TX | 55,554 | 9.6% |
| Jones County, TX | 54,611 | 9.2% |
| Fisher County, TX | 49,612 | 8.7% |
| Hall County, TX | 46,489 | 8.1% |
| Gray County, TX | 41,971 | 7.1% |
| Coke County, TX | 39,039 | 6.8% |
| Haskell County, TX | 35,115 | 6.1% |
| Stonewall County, TX | 32,590 | 5.5% |
| Crosby County, TX | 23,880 | 4.1% |
| Baylor County, TX | 23,089 | 4.1% |
| Hardeman County, TX | 19,124 | 4.3% |
| Taylor County, TX | 17,857 | 3.1% |
| Borden County, TX | 14,566 | 2.5% |
| Foard County, TX | 14,254 | 2.6% |
| Briscoe County, TX | 13,602 | 2.4% |
| Runnels County, TX | 12,075 | 1.8% |
| Hemphill County, TX | 10,124 | 1.7% |
| Nolan County, TX | 9,896 | 1.7% |
| Howard County, TX | 4,492 | 0.8% |
| Floyd County, TX | 4,387 | 0.7% |
| McCulloch County, TX | 2,808 | 0.4% |
| Coleman County, TX | 2,662 | 0.3% |
| Archer County, TX | 1,823 | 0.3% |
| Throckmorton County, TX | 1,206 | 0.2% |
| Tom Green County, TX | 1,006 | 0.1% |
| Wichita County, TX | 971 | 0.3% |
| King County, TX | 868 | 0.1% |
| San Saba County, TX | 754 | 0.1% |
| Armstrong County, TX | 317 | 0.1% |
| Childress County, TX | 279 | 0.1% |
| Jackson County, OK | 243 | 0.0% |
| Wheeler County, TX | 132 | 0.0% |
| Concho County, TX | 78 | 0.0% |
| Kiowa County, OK | 78 | 0.0% |
| Greer County, OK | 15 | 0.0% |
Septic absorption fields
NRCS rating, share of Miles acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 69.0% |
| Very limited | 27.8% |
| Not rated | 3.2% |
Drainage, water table and flooding
Share of Miles acres
- Depth to seasonal high water table
- None reported within about 6.5 feet (median where reported).
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 0–4% (median 2%).
- Topsoil organic matter
- Median 0.8%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 99.8% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 0.0% |
| Poorly drained | 0.0% |
| Very poorly drained | 0.0% |
| Not rated | 0.2% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.0% |
| B: moderate infiltration | 96.8% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 0.0% |
| A/D: D as is, A if drained | 0.0% |
| B/D: D as is, B if drained | 0.0% |
| C/D: D as is, C if drained | 0.0% |
| Not rated | 3.2% |
Sources & data dates
- Source
- USDA NRCS Soil Survey Geographic Database (SSURGO), queried through Soil Data Access. Public domain.
- Data date
- SSURGO as published on November 3, 2026 (most recent survey area update October 26, 2026). NRCS refreshes SSURGO each October.
- Scope
- All map unit components named Miles (component kind "Series") in SSURGO: 1,438,412 acres.
- Method
- Shares are by mapped acres of Miles components. The profile comes from the single largest Miles component. Full methodology.