Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/3/84; site mhuxi.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!mhuxi!lruss From: lruss@mhuxi.UUCP (LAWRENCE RUSS) Newsgroups: net.physics Subject: Re: Caverns Under New York Metropolitan Area? Message-ID: <243@mhuxi.UUCP> Date: Tue, 4-Dec-84 18:39:58 EST Article-I.D.: mhuxi.243 Posted: Tue Dec 4 18:39:58 1984 Date-Received: Wed, 5-Dec-84 01:28:41 EST References: <660@clyde.UUCP> Organization: AT&T Bell Laboratories, Murray Hill Lines: 27 > ??????????????????? > > I recently heard from a friend about an enormous system of natural > caverns which were apparently just discovered (by someone at Columbia > University?) in the region of New York City and northern New Jersey. I would > like to know if anyone has any additional information about these caverns, > especially their depth below ground level and a map of the areas to which they > extend. > > clyde!bonnie!jmm > J. M. McGhee > (201) 386-2333 The existence of an enormous system of caverns under New York City is not a new discovery and, in fact, has been known for quite a long time, since about 1904. The caverns have been well studied by geologists and fall under three classifications known as IRT, IND, and BMT. (The meaning of these abbreviations escapes at the moment.) They are an enormously popular tourist attraction, drawing over one million visitors per day, and the City of New York regularly runs tour trains through the caverns at a nominal charge of 90 cents. There are some 400 entrances to these caverns, and maps are available at most of the entrances. :-)