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Recordist's notes
A very active frog pond, along a clearing. This clearing, and miles more like it, are the only evident remnant of the world's largest antenna array - The Clam Lake US Navy Extremely Low Frequency (ELF) Antenna Array. This array, miles of above-ground wiring, paired with a sister site near Witch Lake in Upper Peninsula Michigan, generated wavelengths 5000-6000 kilometers long. These subradio waves allowed for communications between submarines around the world to communicate to bases in the US.Health effects of ELF waves on humans and animals alike, especially wales and dolphins, are still unknown. Due to this site being extremely unpopular with the residents of Wisconsin and Michigan, this site was deactivated in 2004 after 19 years of use. The cleared paths are now used by snowmobilers and elk hunters.
Context
This recording was made away from larger towns, about 113 km from the nearest city in our gazetteer.
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Sources & credits
- “Clam Lake, WI, USA - Former site of US Navy ELF antenna array” by Steven Rowell – Public Domain Mark · radio aporee ::: maps via Internet Archive
- Reverse geocoding: GeoNames – CC BY 4.0