Oz Terra
surface feature on the Plutonian moon Charon
Oz Terra is the unofficial name given to a major geological region on Charon. The Pluto-facing hemisphere of Charon is divided onto two primary regions; Oz Terra in the north and Vulcan Planitia in the south. These regions are separated by a series of scarps near Charon's equator, particularly Serenity Chasma and Mandjet Chasma. The region was discovered by New Horizons during its flyby of Pluto in July 2015.
The name is derived from the Land of Oz, the fantasy land created by L. Frank Baum for his 1900 children's novel The Wonderful Wizard of Oz. The name was also favored for the entire moon by its discoverer, James W. Christy.
Geology
Oz Terra sits about a kilometer higher than Vulcan Planitia, and is typified by large crustal blocks, having fractured early in Charon's history. The region was formed about 4 billion years ago, when a subsurface ocean of water and ammonia flowed to the surface, and then solidified.
“Oz Terra” enters the record as surface feature on the Plutonian moon Charon. Crown Archives preserves that source wording while asking what Terra, surface and feature can confirm, complicate or overturn.
Why this record matters
“Oz Terra” is worth following because a concise public description often conceals a longer documentary argument. Here, Terra, surface and feature provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Mar 5, 2025. The linked authority identifier is Q96397947. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2015 and 1900.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Oz Terra”, its source revision and the description used here.
- Expand the search: follow Oz Terra primary sources, Oz Terra archive and Terra research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “Oz Terra” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.