- ______________ occur as stains on woody vegetation or other objects like fences or bridge pillars. -   Drainage patterns
-   Water marks
-   Rust
-   Sediment deposites
 
- When observing drainage patterns that will be used as a primary indicator of wetland hydrology what consideration must be also be noted? -   Presence of other primary indicators
-   Presence of wetland soils
-   Topographic position
 
- Where can you obtain local soil survey data on hydrology? -   Environmental Protection Agency (EPA)
-   U.S. Army Corps of Engineers
-   Natural Resource Conservation Service (NRCS)