Glossary
Definitions from the Soil Science Society of America (SSSA)
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| Unstable fill (in tables) | Risk of caving or sloughing on banks of fill material. |
| Upland (geology) | Land at a higher elevation, in general, than the alluvial plain or stream terrace land above the lowlands along streams. |