Table of Contents
Lamar L-3I Main Station
Lamar, CO is an underground switching main station on the L-3I hardened transcontinental cable. Lamar provided power for the L-3I cable and a span of L-1 cable to Cheyenne Mountain Complex, an AUTOVON tandem switch, and a NORTHSTAR Ground Entry Point.
| Built | 1965-1966? |
|---|---|
| Builder | AT&T |
| Fate | In Use |
The Lamar station is immediately adjacent to the Lamar Air Defense Command HF Radio Site, which likely predates the L-3I. I say this because a 1941 route map shows a K-carrier cable already in service from Denver to two sites at Lamar, speculatively perhaps the Lamar CO and the HF radio site, although this needs more research. The cable terminates at Lamar and, given the small volume of long-distance traffic to southeastern Colorado in the 1940s, there must have been something in particular there to justify the cable.
operating instructions
Various functions are available as part of the map.
mouse/touch operation
- moving by grabbing the map with a mouse-click you can move the map around
- overview map using the < button in the bottom right of the map you can expand an overview map
- zooming in and out using the + and - buttons in the top left of the map you can obtain more or less detail in the map
- switching themes or maps clicking on the ≡ icon on the right-hand side of the map you can view and select available maps and themes
- retrieving information the map may contain elements that contain more information, by clicking these a popup will show this information
- fullscreen display using the ⛶ button the map can be maximized to fullscreen display, use the ▢ button to return to page display.
keyboard operation
Keyboard operation becomes available after activating the map using the tab key (the map will show a focus indicator ring).
- moving using the arrow keys you can move the map
- overview map using the + button in the bottom right of the map you can expand an overview map
- zooming in and out using the + and - buttons in the top left of the map or by using the + and - keys you can obtain more or less detail in the map
- switching themes or maps clicking on the ≡ icon on the right-hand side of the map you can view and select available maps and themes
- retrieving information the map may contain elements that contain more information, using the i key you can activate a cursor that may be moved using the arrow keys, pressing the enter will execute an information retrieval. press the i or the escape key to return to navigation mode
- fullscreen display using the ⛶ button the map can be maximized to fullscreen display, use the ▢ button to return to page display.
It's possible that some of the functions or buttons describe above have been disabled by the page author or the administrator
| id | symbol | latitude | longitude | description |
|---|---|---|---|---|
| 1 |  |
37.924260º | -102.609880º | Site Location |
Routes
| Destination | Direction | Carrier |
|---|---|---|
| Dalhart TX | South | L-3I |
| Scott City KS | Northeast | L-3I |