The Electric Telegraph Office in Queensland opened in 1861. Immediately plans were developed to construct two lines:
Details of subsequent line construction and the telegraph offices opened along those lines can be accessed through the various hyperlinks below.
| Cape York: Extends from Somerset and Thursday Island in the north to the Gulf line between Cardwell and Normanton and Burketown. Telegraph offices on Cape York. |
Gulf Line: Extends from Cardwell through Junction Creek to Normanton and Burketown. Telegraph offices on the Gulf line. |
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Lines in the Normanton - Cloncurry - Mackay region. Telegraph Offices in this region.
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Lines in the Brisbane - Roma - Mackay region. All lines along the coast from Brisbane north to Mackay. Telegraph Offices in this region. |
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Lines in the South east region from Brisbane to Tweed Heads and east to Warwick. Telegraph Offices in this region. |
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| Lines in the Central West region:
Extends from Winton to Tambo south to Charleville and west to Birdsville. Telegraph offices in the Central West Section. |
Lines in the South west region: Extends from the line between Toowoomba and Charleville south to the NSW border.
Telegraph Offices in the South West region.
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Background to the planning of the telegraph lines is provided in part by the population estimates of the number of inhabitants in the various towns at that time:
For 1861, it was estimated that the Colony had 42,000 people of whom 12,000 were aboriginal scattered across the territory.
Of the other people, it was estimated that 50 % were distributed as follows:
| Brisbane | 7,000 |
| Ipswich | 4,500 |
| Toowoomba | 1,500 |
| Drayton | 400 |
| Warwick | 700 |
| Dalby | 200 |
| Gayndah | 400 |
| Maryborough | 800 |
| Gladstone | 250 |
| Rockhampton | 800 |