Lago Ritom
reservoir
Lago Ritom is a lake in the Piora valley, Ticino, Switzerland. The natural lake is used as a reservoir by the Swiss Federal Railways (SBB-CFF-FFS) to generate hydro-electric power for the Gotthard line. The first dam was built in 1918 and, in 1950, its height was increased by 23 m.
Overview
The lake's surface area is 1.49 km2 at an elevation of 1850 m. With Lake Cadagno and Lago di Tom, it is one of the main lakes in the Piora valley.
Before being used as a reservoir, Lake Ritom was a meromictic lake similar to the nearby Lake Cadagno.
Transport
The lake can be reached by funicular from Piotta 786 m below. The track with a length of 1,369 m has a maximum inclination of 87.8%, the highest in Europe after the Gelmerbahn funicular (106%).
This brief starts where responsible research should: with the source description of “Lago Ritom” as reservoir. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as reservoir. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 26, 2026. The linked authority identifier is Q680999. VIAF identifies the subject as 307294670. Authority coordinates are 46.540, 8.689. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1918, 1950 and 1850.
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.
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This entry incorporates text from “Lago Ritom” 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.