What this means
The plain-English answer
A general park pass is not the detector permit. The park can limit the place, hours, and days, and it may refuse permits where historic resources could be harmed.
What is clear
3 rules to carry into the field.
- Ask the specific state park office for the current metal-detecting permit process.
- Do not use a detector on a New Jersey Wildlife Management Area.
- Individual park pages show real differences: a narrow approved area at one park and a complete ban at another.
Final local check
Before you leave home
Get the exact park’s written permit or confirmation. Check the approved zone and date; do not assume a permit from another park transfers.
Federal ground
State rules do not answer federal land.
Federal regulation generally prohibits possessing or using a metal detector in National Park System areas. Narrow stored-device, navigation, scientific, mining, and administrative exceptions do not create a recreational exception.
Read the official sourceBLM may allow low-impact prospecting on suitable land, but closures, developed sites, protected areas, cultural-resource law, and active mining claims can change the answer. Ask the local field office first.
Read the official source