Penrose Circle

Through generous annual support, Penrose Circle donors give the Geological Society of America the resources it needs to carry out its most important priorities. The Foundation welcomes your participation in the generous legacy of R.A.F. Penrose Jr. Your annual support at the following levels bring you into a dedicated group of Penrose Circle members:

Topaz:  $1,000 – $2,499
Ruby:  $2,500 – $4,999
Emerald:  $5,000 – $9,999
Diamond:  $10,000 or more

Please contact Neil Fishman ( if you are interested in learning more.

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