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Verified by TroveRadar Field Database
Updated March 2026
150+ January Guides
January field guide overview
🗓️Monthly Browse Layer

January Field Guides by State

Use January as the timing layer, then choose the exact state route for mushrooms, fossils, or metal detecting instead of guessing from a continent-wide average.

Every state has three category pages in this month, which means the fastest route is now month, then state, then discipline.

States covered

50

one hub page per state for this month

Categories per state

3

mushrooms, fossils, and metal detecting

Visible targets

AmmoniteBelemniteBivalve Shell FossilGastropod Shell Fossil

examples pulled from live month-state guides

Choose a state

Start with the geography, then pick the discipline.

Each state hub bundles the three category routes for January, plus quick links to laws, nearby city pages, and follow-on planning pages.

Southeast Piedmont

Alabama

3 routes
AmmoniteBelemniteBivalve Shell FossilGastropod Shell Fossil
Open January in Alabama

Alaska Boreal

Alaska

3 routes
Mammoth ToothBurn MorelBirch BoleteAspen Bolete
Open January in Alaska

Desert Southwest

Arizona

3 routes
Elrathia TrilobiteDinosaur Bone FragmentDromaeosaur ToothSauropod Vertebra
Open January in Arizona

Ozarks

Arkansas

3 routes
TrilobiteOrthocone NautiloidBrachiopodSpirifer Brachiopod
Open January in Arkansas

California Coast

California

3 routes
Bivalve Shell FossilGastropod Shell FossilShark ToothMako Shark Tooth
Open January in California

Central Rockies

Colorado

3 routes
Elrathia TrilobiteAmmoniteBaculiteInoceramid Clam
Open January in Colorado

New England

Connecticut

3 routes
Mastodon ToothAmberSpanish Silver RealeSpanish Cob Coin
Open January in Connecticut

Mid-Atlantic Coast

Delaware

3 routes
AmmoniteBelemniteBivalve Shell FossilShark Tooth
Open January in Delaware

Florida Peninsula

Florida

3 routes
AmmoniteBelemniteBivalve Shell FossilGastropod Shell Fossil
Open January in Florida

Southeast Piedmont

Georgia

3 routes
Shark ToothMegalodon ToothMako Shark ToothSawfish Rostral Tooth
Open January in Georgia

Northern Rockies

Idaho

3 routes
Elrathia TrilobiteAmmoniteBaculiteInoceramid Clam
Open January in Idaho

Upper Midwest

Illinois

3 routes
TrilobiteIsotelus TrilobiteOrthocone NautiloidBrachiopod
Open January in Illinois

Upper Midwest

Indiana

3 routes
TrilobiteIsotelus TrilobiteOrthocone NautiloidBrachiopod
Open January in Indiana

Upper Midwest

Iowa

3 routes
TrilobiteIsotelus TrilobiteOrthocone NautiloidBrachiopod
Open January in Iowa

Great Plains

Kansas

3 routes
AmmoniteBaculiteBelemniteProductid Brachiopod
Open January in Kansas

Appalachians

Kentucky

3 routes
TrilobiteIsotelus TrilobiteOrthocone NautiloidBrachiopod
Open January in Kentucky

Mid-South Rivers

Louisiana

3 routes
AmmoniteBelemniteBivalve Shell FossilGastropod Shell Fossil
Open January in Louisiana

New England

Maine

3 routes
Mastodon ToothAmberSpanish Silver RealeSpanish Cob Coin
Open January in Maine

Mid-Atlantic Coast

Maryland

3 routes
AmmoniteBelemniteBivalve Shell FossilShark Tooth
Open January in Maryland

New England

Massachusetts

3 routes
Mastodon ToothAmberSpanish Silver RealeSpanish Cob Coin
Open January in Massachusetts

Great Lakes

Michigan

3 routes
TrilobiteIsotelus TrilobiteOrthocone NautiloidBrachiopod
Open January in Michigan

Great Lakes

Minnesota

3 routes
TrilobiteIsotelus TrilobiteOrthocone NautiloidBrachiopod
Open January in Minnesota

Mid-South Rivers

Mississippi

3 routes
AmmoniteBelemniteBivalve Shell FossilGastropod Shell Fossil
Open January in Mississippi

Ozarks

Missouri

3 routes
TrilobiteOrthocone NautiloidBrachiopodSpirifer Brachiopod
Open January in Missouri

Northern Rockies

Montana

3 routes
Elrathia TrilobiteAmmoniteBaculiteInoceramid Clam
Open January in Montana

Great Plains

Nebraska

3 routes
AmmoniteBaculiteBelemniteProductid Brachiopod
Open January in Nebraska

Desert Southwest

Nevada

3 routes
Elrathia TrilobiteDinosaur Bone FragmentDromaeosaur ToothSauropod Vertebra
Open January in Nevada

New England

New Hampshire

3 routes
Mastodon ToothAmberSpanish Silver RealeSpanish Cob Coin
Open January in New Hampshire

Northeast

New Jersey

3 routes
TrilobiteBelemniteBrachiopodBryozoan Colony
Open January in New Jersey

Southwest Highlands

New Mexico

3 routes
Elrathia TrilobiteDinosaur Bone FragmentDromaeosaur ToothSauropod Vertebra
Open January in New Mexico

Northeast

New York

3 routes
TrilobiteBelemniteBrachiopodBryozoan Colony
Open January in New York

Appalachians

North Carolina

3 routes
TrilobiteOrthocone NautiloidBrachiopodSpirifer Brachiopod
Open January in North Carolina

Prairie Lakes

North Dakota

3 routes
AmmoniteBaculiteBelemniteProductid Brachiopod
Open January in North Dakota

Interior Northeast

Ohio

3 routes
TrilobiteIsotelus TrilobiteOrthocone NautiloidBrachiopod
Open January in Ohio

Southern Plains

Oklahoma

3 routes
TrilobiteAmmoniteBaculiteBelemnite
Open January in Oklahoma

Pacific Northwest

Oregon

3 routes
Petrified WoodFossil Leaf ImpressionFossil ConeAmber
Open January in Oregon

Northeast

Pennsylvania

3 routes
TrilobiteIsotelus TrilobiteBelemniteBrachiopod
Open January in Pennsylvania

New England

Rhode Island

3 routes
Mastodon ToothAmberSpanish Silver RealeSpanish Cob Coin
Open January in Rhode Island

Atlantic Barrier Islands

South Carolina

3 routes
Shark ToothMegalodon ToothMako Shark ToothSawfish Rostral Tooth
Open January in South Carolina

Great Plains

South Dakota

3 routes
AmmoniteBaculiteBelemniteProductid Brachiopod
Open January in South Dakota

Appalachians

Tennessee

3 routes
TrilobiteOrthocone NautiloidBrachiopodSpirifer Brachiopod
Open January in Tennessee

Southern Plains

Texas

3 routes
AmmoniteBelemniteProductid BrachiopodBivalve Shell Fossil
Open January in Texas

Central Rockies

Utah

3 routes
Elrathia TrilobiteAmmoniteBaculiteInoceramid Clam
Open January in Utah

New England

Vermont

3 routes
Mastodon ToothAmberSpanish Silver RealeSpanish Cob Coin
Open January in Vermont

Mid-Atlantic Coast

Virginia

3 routes
TrilobiteAmmoniteBelemniteOrthocone Nautiloid
Open January in Virginia

Pacific Northwest

Washington

3 routes
Petrified WoodFossil Leaf ImpressionFossil ConeAmber
Open January in Washington

Appalachians

West Virginia

3 routes
TrilobiteIsotelus TrilobiteOrthocone NautiloidBrachiopod
Open January in West Virginia

Great Lakes

Wisconsin

3 routes
TrilobiteIsotelus TrilobiteOrthocone NautiloidBrachiopod
Open January in Wisconsin

Northern Rockies

Wyoming

3 routes
Elrathia TrilobiteAmmoniteBaculiteInoceramid Clam
Open January in Wyoming
🧭

Take TroveRadar Into the Field

Pin january field plans to your field journal. Get offline maps, real-time species ID, and community find reports.

Why add a January browse page instead of linking straight to deep pages?
Because the useful decision sequence is month, then state, then category. The January browse layer reduces dead-end navigation and makes it easier to compare nearby options before committing to one route.
Does every state have all three January categories?
Yes. TroveRadar currently exposes mushrooms, fossils, and metal detecting for every state in January, which creates a consistent 50-state browse grid for this month.
What should you open after the state hub?
Open the matching category route when you know the discipline, or use the state hub itself if you still need permit context, nearby-city ideas, and the best follow-on pages for the trip plan.