119th Congress · Senate bill · Last action Jul 23, 2026
S. 1516IntroducedPublic Lands and Natural Resources
Senate authorizes study of Cahokia Mounds Mississippian archaeological culture.
Sponsor: Sen. Durbin, Richard J. (D-IL)1 cosponsorIntroduced Apr 29, 2025
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In plain English
The bill directs the Department of the Interior to study whether three ancient Native American mound sites in Illinois—Cahokia Mounds, Emerald Mounds, and Pulcher Mounds—should become part of the National Park System, and to evaluate their national significance and the costs of preservation under different management options. Sen. Richard Durbin (D-IL) introduced the bill with one Democratic cosponsor. Interior must report its findings and recommendations to Congress.
Generated by ThePolitibase from the bill text and CRS summary. Read the official text →
Where it is in the process
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Introduced
Apr 29
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Senate committee
Feb 4
3
Senate floor
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4
House
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5
Signed
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What happens next: Awaiting committee assignment or hearings in the Senate.
Community vote
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Sponsor
Cosponsors (1)
TS
All Democratic.
Activity timeline
Jul 23
1d ago
1d ago
Placed on Senate Legislative Calendar under General Orders. Calendar No. 478.
Jul 23
1d ago
1d ago
Committee on Energy and Natural Resources. Reported by Senator Lee with an amendment in the nature of a substitute. Without written report.
Jul 23
1d ago
1d ago
Committee on Energy and Natural Resources. Reported by Senator Lee with an amendment in the nature of a substitute. Without written report.
Feb 4
Feb 4
Feb 4
Committee on Energy and Natural Resources. Ordered to be reported with an amendment in the nature of a substitute favorably.
Apr 29
Apr 29, 2025
Apr 29, 2025
Read twice and referred to the Committee on Energy and Natural Resources. (text: CR S2668)
Apr 29
Apr 29, 2025
Apr 29, 2025
Introduced in Senate
Read the bill text
Official text via Congress.gov. Opens in a new tab.
Full action log
All 6 recorded actions since introduction · Source: Congress.gov
2026
Jul 23
SENATEPlaced on Senate Legislative Calendar under General Orders. Calendar No. 478.
Jul 23
SENATECommittee on Energy and Natural Resources. Reported by Senator Lee with an amendment in the nature of a substitute. Without written report.
Jul 23
Committee on Energy and Natural Resources. Reported by Senator Lee with an amendment in the nature of a substitute. Without written report.
Feb 4
SENATECommittee on Energy and Natural Resources. Ordered to be reported with an amendment in the nature of a substitute favorably.
2025
Apr 29
SENATERead twice and referred to the Committee on Energy and Natural Resources. (text: CR S2668)
Apr 29
Introduced in Senate
All 1 cosponsor
1 Democrat · 0 Republicans
Democrats (1)
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