Effigy Mounds National Monument
E234597
Effigy Mounds National Monument is a protected archaeological area in northeastern Iowa known for its prehistoric Native American earthen mounds shaped like animals and other forms.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Effigy Mounds National Monument canonical | 8 |
| Effigy Mounds National Monument (across river in Iowa) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2109785 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Effigy Mounds National Monument Context triple: [Hopewell tradition, hasSite, Effigy Mounds National Monument]
-
A.
Indiana Dunes National Lakeshore
Indiana Dunes National Lakeshore is a protected stretch of diverse dunes, beaches, wetlands, and forests along the southern shore of Lake Michigan in northwestern Indiana, known for its rich biodiversity and recreational opportunities.
-
B.
Sleeping Bear Dunes National Lakeshore
Sleeping Bear Dunes National Lakeshore is a protected stretch of towering sand dunes, forests, and beaches along the northwestern coast of Michigan’s Lower Peninsula, renowned for its scenic vistas and outdoor recreation.
-
C.
Indiana Dunes State Park
Indiana Dunes State Park is a protected natural area along the southern shore of Lake Michigan, known for its towering sand dunes, diverse ecosystems, and extensive hiking and beach recreation opportunities.
-
D.
Keweenaw National Historical Park
Keweenaw National Historical Park is a U.S. National Historical Park that preserves and interprets the history of copper mining and related communities on Michigan’s Keweenaw Peninsula.
-
E.
Dosewallips State Park
Dosewallips State Park is a scenic Washington state park on Hood Canal known for its forested hiking trails, riverside camping, and wildlife viewing opportunities.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Effigy Mounds National Monument Target entity description: Effigy Mounds National Monument is a protected archaeological area in northeastern Iowa known for its prehistoric Native American earthen mounds shaped like animals and other forms.
-
A.
Indiana Dunes National Lakeshore
Indiana Dunes National Lakeshore is a protected stretch of diverse dunes, beaches, wetlands, and forests along the southern shore of Lake Michigan in northwestern Indiana, known for its rich biodiversity and recreational opportunities.
-
B.
Sleeping Bear Dunes National Lakeshore
Sleeping Bear Dunes National Lakeshore is a protected stretch of towering sand dunes, forests, and beaches along the northwestern coast of Michigan’s Lower Peninsula, renowned for its scenic vistas and outdoor recreation.
-
C.
Indiana Dunes State Park
Indiana Dunes State Park is a protected natural area along the southern shore of Lake Michigan, known for its towering sand dunes, diverse ecosystems, and extensive hiking and beach recreation opportunities.
-
D.
Keweenaw National Historical Park
Keweenaw National Historical Park is a U.S. National Historical Park that preserves and interprets the history of copper mining and related communities on Michigan’s Keweenaw Peninsula.
-
E.
Dosewallips State Park
Dosewallips State Park is a scenic Washington state park on Hood Canal known for its forested hiking trails, riverside camping, and wildlife viewing opportunities.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
archaeological site
ⓘ
national monument ⓘ protected area ⓘ |
| area | approximately 2,500 acres ⓘ |
| contains |
compound mounds
ⓘ
conical mounds ⓘ effigy mounds ⓘ linear mounds ⓘ prehistoric earthen mounds ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| culturalAffiliation |
Late Woodland culture
ⓘ
linked to:
Late Woodland cultures
Woodland period cultures ⓘ |
| dateEstablished | 1949-10-25 ⓘ |
| earliestConstructionDate | circa 500 BCE ⓘ |
| establishedBy |
Harry S. Truman
ⓘ
linked to:
President Harry S. Truman
|
| governingBody |
U.S. National Park Service
ⓘ
linked to:
National Park Service
|
| hasFacility | visitor center ⓘ |
| hasHeritageStatus |
National Register of Historic Places listing
ⓘ
linked to:
National Register of Historic Places
|
| hasShape |
bear-shaped mounds
ⓘ
bird-shaped mounds ⓘ other animal effigies ⓘ |
| hasTrail | hiking trails ⓘ |
| hasView | Mississippi River valley ⓘ |
| IUCNCategory | III ⓘ |
| knownFor |
animal-shaped earthen mounds
ⓘ
prehistoric Native American earthworks ⓘ |
| latestConstructionDate | circa 1300 CE ⓘ |
| locatedIn |
Allamakee County, Iowa
NERFINISHED
ⓘ
Clayton County, Iowa NERFINISHED ⓘ Iowa ⓘ |
| locatedInEcoregion | Driftless Area ⓘ |
| locatedInRegion | northeastern Iowa ⓘ |
| locatedOn | Mississippi River ⓘ |
| managedBy | National Park Service ⓘ |
| nearestCity |
Marquette, Iowa
ⓘ
McGregor, Iowa ⓘ
linked to:
Marquette, Iowa
|
| NRHPType | historic district ⓘ |
| numberOfMounds | over 200 ⓘ |
| offers |
archaeological exhibits
ⓘ
interpretive programs ⓘ |
| partOf |
Mississippi River corridor
ⓘ
linked to:
Mississippi River valley
National Park System ⓘ
linked to:
United States National Park System
|
| purpose |
burial site
ⓘ
ceremonial site ⓘ spiritual site ⓘ |
| subjectOf |
Native American cultural studies
ⓘ
archaeological research ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Effigy Mounds National Monument Description of subject: Effigy Mounds National Monument is a protected archaeological area in northeastern Iowa known for its prehistoric Native American earthen mounds shaped like animals and other forms.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
northern Iowa
Prairie du Chien, Wisconsin
→
hasNearbyProtectedArea
→
Effigy Mounds National Monument (across river in Iowa)
ⓘ
linked to: Effigy Mounds National Monument