Is Metal Detecting allowed: Yes, some park have designated metal detecting areas; others metal detecting is prohibited.
Excerpt from Park Regulations HERE. (This also lists the parks where metal detecting is allowed or prohibited. )
You can find a list of parks that allow metal detecting You will see a metal detecting man as the symbol to show if metal detecting is allowed. Use the filter to see which parks allow metal detecting HERE:
Metal detecting is allowed in designated parks when it is conducted in ways that do not damage the resources or violate state laws. Any items found must be reviewed by park staff and may be retained for further investigation.
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.