October Term 2011 · Docket 10-218

Who owns riverbeds when navigation history is unclear?

PPL Montana seeks to keep riverbed ownership. Montana claims state title to those beds.

Official caption
PPL Montana, LLC v. Montana
Latest argument session
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Argued
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Official Transcript

Verified source milestones

  1. — An official oral-argument transcript was verified.
  2. — An official oral-argument transcript was verified.

The arguments, in order

This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.

  1. Argument 1 ·

    What happened at the argument

    PPL argues the case concerns riverbeds, not flood lands.

    Montana argues the state owns navigable riverbeds.

    PPL claims predecessors secured all necessary property rights.

    Montana argues the lower court committed three basic errors.

    Read the official transcript for this argument · Official argument details

    Sources used for this argument breakdown

A citizen's guide to the whole case

What this case is about

The dispute centers on who holds title to riverbeds. PPL argues private ownership. Montana asserts state ownership based on navigability.

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How the case got here

The Supreme Court heard oral argument in this case on December 7, 2011.

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What each side wants

PPL wants to retain ownership of the riverbeds.

Montana wants the state to hold title to the riverbeds.

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What each side says

PPL argues private parties secured all necessary property rights.

Montana argues the state owns navigable riverbeds under the Constitution.

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What the justices asked

Justice Sotomayor asked why a specific factor is not considered.

Justice Alito asked which authorities define river segments versus the whole.

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Why it matters

This case defines state versus private ownership of riverbeds. It clarifies how courts assess historical navigation evidence. It impacts property rights along waterways nationwide.

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What happens next

This article currently covers the argument record. Use the official docket link for later case activity.

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Official Court provenance

Official docket and case history · Official Supreme Court oral-argument detail page

Title and summary sources

Revision history

  1. Revision 1 · Official Transcript ·

    Correction: Rewritten to the concise citizen-facing editorial standard.

  2. Revision 2 · Official Transcript ·

    Correction: Migrated to the dated official Court activity contract without model use.

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