Is Metal Detecing allowed in WA state parks? YES
Find the link to the Metal detecting Rules HERE:
Metal detecting is permitted at more than 60 state parks throughout Washington. Users of metal detectors must register first with Washington State Parks and comply with posted regulations. The registration form, rules, and a list of parks that allow detecting may be found in the Metal Detecting in Washington State Parks brochure, which is available from park rangers at 360-902-8500 or from the Washington Telecommunications Relay Service at 800-833-6388.
Metal detecting areas vary in each park. Some parks allow detecting in developed public-use areas and unoccupied campsites, while other parks allow detecting in specific areas only. To view or print maps showing areas open to metal detecting, visit the park maps page.
FMDAC Disclaimer: FMDAC assumes no responsibility for any person who knowingly or accidentally violates any state park regulation. Although FMDAC will try to keep this information current we cannot anticipate how each regulation will be interpreted by a specific park department, park employee or other government employee. It is the sole responsibility of each individual to know and obey the regulations of the park or area they are visiting and or metal detecting.