Here are a few tips for using this site:

• Go slowly: Every time you click or resize you force the software to redraw maps which takes time.
• Using the tools: The "Tools" menu across the top of the site is the key to using the site. If you are new to the site, click on Help for information on how to use the tools.
• For the best view: The Atlas is best viewed with a 1024 x 768 pixel screen resolution using Internet Explorer.
• Check the accuracy: Many data layers on this site were converted into digital format from paper maps. There are inaccuracies inherent in this process as well as possible errors on the original maps. Refer to the metadata associated with each map layer to ascertain data limitations. These maps are useful in informing broad-scale land use decisions, but should not be used to substitute for site-specific studies carried out by qualified geologists and engineers. Ecology assumes no liability for data depicted on these maps.

If you have ideas for improvements, contact Kathy Taylor at (360) 407-7125.

Click here to start mapping!