HomeSoil seriesTruce
Truce soil series
Truce soils cover 318,991 mapped acres, almost all of them in Texas. USDA rates shrink-swell a limit for houses without basements on 47% of that land, and a shallow water table a limit for basements on 0%.
It is the leading soil series by area in 8 of the counties and cities on this site.
SSURGO survey versions to August 5, 2026 · series description revised 2013-11
of its land: shrink-swell limits houses without basements
of its land: a shallow water table limits basements
median highest linear extensibility (6% and up is high)
median highest clay content in the top 150 cm
USDA's description
The Truce series consists of soils that are deep over claystone bedrock. These well drained, slowly permeable soils formed in loamy colluvium and/or slope alluvium over clayey residuum derived from claystone of Pennsylvanian age. These soils are on gently sloping to steep, convex ridges. Slopes are typically 1 to 5 percent, but range from 1 to 40 percent. Mean annual precipitation is about 813 mm (32 in) and the mean annual air temperature is about 18.3 degrees C (65 degrees F).
Source: USDA NRCS series description (OSD) for Truce, revised 2013-11. Read it.
Engineering properties
| Mapped area (SSURGO) | 318,991 acres |
| Shrink-swell limits houses without basements | 47.0% |
| Shallow water table limits basements | 0.0% |
| Very limited for septic absorption fields | 85.5% |
| Most common drainage class | Well drained |
| Most common hydrologic soil group | C |
| Taxonomic class | Fine, mixed, active, thermic Udic Paleustalfs |
| Type location | Erath County, Texas |
Where Truce is mapped
| State | Mapped acres |
|---|---|
| Texas | 318,991 |
Places where Truce leads
Counties and cities where Truce covers more mapped land than any other series.
| Place | Share of mapped land |
|---|---|
| Millsap, TX | 50% |
| Gordon, TX | 50% |
| Dennis, TX | 44% |
| Bryson, TX | 26% |
| Bridgeport, TX | 23% |
| Mineral Wells, TX | 22% |
| Eastland, TX | 14% |
| Runaway Bay, TX | 8% |
Other places where Truce is a main soil
Counties and cities where Truce is among the six soil series covering the most mapped land, but not the first. Share of the place's mapped land.
Counties
- Jack County, TX 10%
- Stephens County, TX 8%
- Eastland County, TX 6%
- Montague County, TX 4%
- Young County, TX 4%
Texas and Ohio cities
- Bowie, TX 25%
- Nocona, TX 16%
- Cisco, TX 16%
- Ranger, TX 15%
- Jacksboro, TX 12%
- Strawn, TX 12%
- Moran, TX 9%
- Breckenridge, TX 9%
- Mingus, TX 8%
- Newcastle, TX 8%
- Woodson, TX 5%
Sources
Shares and properties: USDA NRCS SSURGO via Soil Data Access, weighted by each component's share of its map units. Description: the USDA NRCS series description. How we count.