Describes the types of concerns and observations used to help area resource managers analyze actual or potential changes in this highly developed ecosystem.
Homepage for information on geology of the North Cascades National Park in the state of Washington. Includes links to geologic story, geologic field trips, geologic maps, plate tectonics, rocks and minerals, geologic time, and glossary.
Sediment from rivers has both beneficial and detrimental effects on ecosystems and human activities around Puget Sound. We explain where the sediment comes from, how it is transported, and the nature of the data that we can use to understand it.
Human perturbations such as shoreline armoring or urban development can affect the nearshore habitats critical to these populations of small fish which support birds and larger fish.