Information
on Heliographs
During the Geronimo expeditions in the 1880's,
General Nelson Miles of the United States Army devised a system of signaling from
mountain peak to mountain peak using reflective mirrors. The instruments which
held the mirrors were named 'heliographs'. The mirrors were used to signal and
coordinate efforts against Geronimo. The use of heliographs was an interesting
experiment, but the experiment did not prove to be very successful or useful.
When the system was functioning properly, a signal could be communicated from
El Paso, Texas to Camp Verde, Arizona. Following are some interesting links dealing
with heliographs:
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