Birthplace of the Reflection Seismograph

Oklahoma County · on grounds of Belle Isle Metropolitan Library, Oklahoma City

Field tests that confirmed the validity of the reflection seismography method of prospecting for oil were conducted near this spot on June 4, 1921. The shot has virtually echoed around the world. This monument was erected to commemorate the golden anniversary of the event.

TodayHistorical map

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David Rumsey Map Collection, Stanford Libraries

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under a mile from where William Gabby lived in the 1760s

what this marker records spans 1777 to 1789, overlapping William Gabby's years here

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Marker data: Oklahoma Historical Society, Historical Marker Program. Marker texts and locations come from the Society's marker database, reproduced with the Society's written permission.
Sponsored by Geophysical Society of Oklahoma City
This marker on the program's own site

Birthplace of the Reflection Seismograph

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