Gotthard railway in the context of "Chiasso"

Monte Ceneri is a mountain pass in the canton of Ticino in Switzerland. It connects the Magadino Plain and the Vedeggio Valley across the Lugano Prealps at an elevation of 554 metres (1,818 ft) above sea level. It provides the most direct route between the cities of Bellinzona and Lugano. Despite its name (monte is the Italian word for "mountain"), Monte Ceneri is the lowest point on the crest between Monte Tamaro and the Camoghè.

Two tunnels have been dug under Monte Ceneri, the Monte Ceneri Road Tunnel for the A2 motorway and the Monte Ceneri Rail Tunnel for the Gotthard railway. A new rail tunnel, the Ceneri Base Tunnel, was opened in 2020, and connects Camorino near Bellinzona and Vezia near Lugano.

Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs. It is named after Samuel Morse, one of several developers of the system. Morse's preliminary proposal for a telegraph code was replaced by an alphabet-based code developed by Alfred Vail, the engineer working with Morse. Vail's version was used for commercial telegraphy in North America. Friedrich Gerke simplified Vail's code to produce the code adopted in Europe, and most of the alphabetic part of the (ITU) "Morse" is copied from Gerke's revision.

The ITU International Morse code encodes the 26 basic Latin letters A to Z, one accented Latin letter (É), the Indo-Arabic numerals 0 to 9, and some punctuation and messaging procedural signals (prosigns). There is no distinction between upper and lower case letters. Each code symbol is formed by a sequence of dits and dahs. The dit duration can vary for signal clarity and operator skill, but for any one message, once the rhythm is established, a half-beat is the basic unit of time measurement. The duration of a dah is three times the duration of a dit. Each dit or dah within an encoded character is followed by a period of signal absence, called a space, equal to the dit duration. The letters of a word are separated by a space of duration equal to three dits, and words are separated by a space equal to seven dits.

Altdorf (Swiss Standard German pronunciation: [ˈaltˌdɔrf] ) is a municipality in Switzerland. It is the capital of the Swiss canton of Uri and retains historic town privileges. It is the place where, according to the legend, William Tell shot the apple from his son's head.

Altdorf is situated on the right (eastern) bank of the Reuss, about 2 kilometres (1.2 mi) south of where the river discharges into the Urnersee, an arm of Lake Lucerne. It is at the junction of two major Alpine passes—Saint Gotthard to the south and the Klausen Pass to the east—and is the last station on the Gotthard railway before the line enters the Gotthard Base Tunnel, the world's longest railway tunnel.

Klausen Pass (German: Klausenpass; elevation: 1,948 metres or 6,391 feet) is a high mountain pass in the Swiss Alps connecting Altdorf in the canton of Uri with Linthal in the canton of Glarus. Somewhat unusually, the boundary between the two cantons does not lie at the summit of the pass, but some 8 kilometres (5.0 mi) down the slope towards Linthal, with the summit being in Uri.

The Klausen Pass is crossed by a paved road, which has a length, between Altdorf and Linthal, of 46 kilometres (29 mi). The road approaches the summit from Altdorf via the Schächen Valley communities of Bürglen, Spiringen and Unterschächen, and descends to Linthal via the Urnerboden. The road is normally closed between October and May, due to the high snowfall on the pass. During the open period, a PostBus Switzerland service crosses the pass several times a day, connecting Fluelen station, on the Gotthard railway and Lake Lucerne, with Linthal station, the terminus of the railway line through Glarus.

Brunnen (Swiss Standard German pronunciation: [ˈbrʊnən] ) is a resort on Lake Lucerne in Switzerland, part of the municipality Ingenbohl (Canton of Schwyz), at 46°59′44″N 8°36′17″E / 46.99556°N 8.60472°E / 46.99556; 8.60472.

Brunnen railway station, on the Gotthard railway, is served by hourly InterRegio trains, and by lines S2 of the Stadtbahn Zug, which operates hourly between Zug, Arth-Goldau and Erstfeld, and S3 of the S-Bahn Luzern, which operates hourly to Lucerne.