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Glossary

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This is a glossary of creek and watershed terms used on this website and in CCWF publications.
 Orthographic photo
An orthographic-photo (ortho-photo) is an aerial photograph that has been corrected to remove distortions resulting from the curvature of the earth.  The photo has also been overlaid with a grid system and geographically referenced (given coordinates).  The corrected photos can be imported and integrated as data in a GIS.
 Natural debris
Organic debris from natural sources such as leaf litter, branches, bark, roots, vegetation, etc.
 Native/ Non-Native Plants
Native plants naturally occur in a specific region.  Non-native plants are considered exotic plants and are usually introduced as ornamental vegetation (in landscaping), but are not naturally found in the region.  Non-native plants may become invasive.