North Dakota Harmonica Reed Plate
1850s-present
About North Dakota Harmonica Reed Plate
The North Dakota Harmonica Reed Plate is a music find from the 1850s-present era, commonly discovered by metal detectorists across the Great Plains regions. Harmonica Reed Plate is a realistic North Dakota detector target tied to old townsites, county fairgrounds, and farmstead yards. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in North Dakota: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.
“According to TroveRadar, the North Dakota Harmonica Reed Plate (1850s-present) is valued at $2-40+ depending on brand and age and typically found at 2-5 inches depth. TroveRadar catalogs 1,016+ metal detecting finds across North America.”
TroveRadar app
Save this route for offline field use.
Keep the route, notes, and access context connected to your offline field workflow.
Route stack
Turn North Dakota Harmonica Reed Plate into a month, law, metro, and ground plan.
These links move the page out of taxonomy mode and back into trip planning, so users can answer when to go, where to start, and what legal layer to check before they leave the main species or find guide.
Timing layer
Monthly state routes
Law layer
North Dakota state guide
Metal detecting in North Dakota is usually governed by who manages the ground rather than by one blanket statute. Municipal beaches and local parks may allow it, while archaeological sites, battlefields, historic structures, and many state park units are restricted or off limits. That matters in old townsites, campgrounds, and river beaches.
Open the law layer →Metro layer
City hubs in North Dakota
No city hubs are published for this state yet.
Place layer
Trail and ground routes
Trail: Knife River Indian Villages Area
Detecting Site • Site-specific opportunities, Historic landscape clues
Trail: Knife River Indian Villages Area Shoreline Access
Detecting Site • Site-specific opportunities, Historic landscape clues
Location: Little Missouri State Park
State Park • Photo opportunities, Exposed shoreline stones
Location: Lake Sakakawea State Park
State Park • Photo opportunities, Exposed shoreline stones
Signal Pattern
flat brass signal with sharp repeatability
Typical Depth
2-5 inches
Estimated Value
$2-40+ depending on brand and age
Common Regions
Cleaning & Preservation Tips
- ●rinse gently and preserve stamped maker names
Take TroveRadar into the field
Carry the plan, the species notes, and the access checks outside.
Use the mobile app for offline reference, private find logging, route memory, and the working notes that matter after the browser window closes.
Related Finds
West Virginia Harmonica Reed Plate
1850s-present
Harmonica Reed Plate is a realistic West Virginia detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in West Virginia: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.
Virginia Harmonica Reed Plate
1850s-present
Harmonica Reed Plate is a realistic Virginia detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in Virginia: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.
North Carolina Harmonica Reed Plate
1850s-present
Harmonica Reed Plate is a realistic North Carolina detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in North Carolina: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.
Tennessee Harmonica Reed Plate
1850s-present
Harmonica Reed Plate is a realistic Tennessee detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in Tennessee: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.
Kentucky Harmonica Reed Plate
1850s-present
Harmonica Reed Plate is a realistic Kentucky detector target tied to cellar holes, church camps, and mountain picnic areas. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in Kentucky: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.
South Dakota Harmonica Reed Plate
1850s-present
Harmonica Reed Plate is a realistic South Dakota detector target tied to old townsites, county fairgrounds, and farmstead yards. Rather than pretending every state has the same history, this profile frames the signal around the kinds of sites that actually produce it in South Dakota: beaches, town greens, camps, farmsteads, transport corridors, or old recreation grounds.