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From: landauer%morocco@Sun.COM (Doug Landauer)
Newsgroups: rec.misc,sci.misc
Subject: Re: Holes in Granite
Message-ID: <31147@sun.uucp>
Date: Fri, 16-Oct-87 19:58:20 EDT
Article-I.D.: sun.31147
Posted: Fri Oct 16 19:58:20 1987
Date-Received: Sun, 18-Oct-87 05:06:47 EDT
References: <3013@whuts.UUCP>
Sender: news@sun.uucp
Reply-To: landauer@sun.UUCP (Doug Landauer)
Organization: Sun Microsystems, Mountain View
Lines: 15
Keywords: granite, lightning, mountain
Xref: mnetor rec.misc:522 sci.misc:571

> These holes were about 3-4 inches in diameter, about the same
> amount deep and were fairly circular in appearance.

This sounds like an exact description of the "mortar holes" that
were created by the native Americans for grinding acorns (one of
their primary foods, at least in California) into meal.

For those of you in California, one of the best places to see examples
of these mortar holes is at Indian Grinding Rock State Park, in the
foothills of the Sierra Nevada.  (Just north of CA-88, about 10 miles
east of Jackson.)
--
	Doug Landauer				Sun Microsystems, Inc.
	ARPA Internet:	landauer@sun.com	Software Products Division
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