Geology Links:
New York State Geology Resource Page (Many useful links!)
New York State Geological Association (Conferences & Guide Books)
Duke labs ("On the Rocks" Field Trips & Metro Area Guide Books)
Mineral Localities at Anthony's Nose --- Geology of Harriman State Park --- Long Island Geologists
Current, Local & Historic Seismic Events from Columbia/Lamont ---- Current World-Wide Seismic Monitor
US Geological Survey, Ask a Geologist ---- New York State Geological Survey
Rockhounds Information Page (For the Collector)
Inexpensive Classroom Rocks & Minerals from D.J.
Topographic Maps fromTopozone, ---- MapTech, ---- Terraserver Aerial Photographs
NYS Geology Resources from the PRI (Paleontological Research Institute) near Cornell
The Digital Library for Earth Systems Education; an NSF geoscience education service

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Weather Links:
NYC Intellicast Current Metro Area Radar
North East Regional Radar Loop (Wait for the Animation!)
Brookhaven Labs/National Weather Service - Many Great Internet Links
Datastreme On-Line Weather Maps & K-12 Meteorology Program
Current Weather.com National Map

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Astronomy Links:
Westchester Amateur Astronomers
Abrams Planetarium Monthly Astronomy Calendar
Hudson River Tide Tables --- USA Locations Tide Tables

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Education/Media:
ESPIRT Listserv for Regents Earth Science (Connect to over 500 teachers statewide. A powerful resource.)
Listservs for Secondary Earth Scienc Educators - USA
NYS Education Dept ---- Download Recent NYS Regents Exams & Reference Tables
ESPRIT/SED Earth Science Mentor Network Home Page
Discovery Channel/Learning Channel
Regents Earth Science Teacher Page
Science Teachers Association of New York State --- National Association of Geoscience Teachers
The American Geological Institute; A legendary force in geoscience education.
NESTA: Statement on the Importance of Earth Science Education
Links for Geography & Earth Science at Central Michigan University
Lab/Activity ideas at Fox Lane High School (Click on red print, Regents ES, then on word HERE.)
STANYS Earth Science Lab Share maintained by Mr. David Robison (Password: STANYS)

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Especially for Students!
Cyberspace Slight-of-Hand: The World of Magic!
Virtual Earthquake, Virtual Dating & other Interactive Simulations (ON-line labs)
EOA Interactive Geoscience Simulations (ShockWave Movies)
Find Your House in a Satellite Photograph
Long Term Projects for Regents Earth Science
Wonders of Geography: Biggest, Highest, Hottest, Definitely the Most Cool!

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General Links:
Google Search Engine, Portal to the Universe ---- Exact Time from the U.S. Navy
Map Blast (Road Maps to Anywhere!) ---- Yahoo Maps
Hudson River School - Paintings of the Romantic Period
Need a zip code? U.S. postal service ZIP+4

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Selected Geologic Field Sites in Westchester County:

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* Granite Quarry , Mohegan Lake
The town of Yorktown has recently purchased the Mohegan Quarry site which is now known as "Sylvan Glen" town park. Access is via Morris Lane, which is off Lexington Avenue. Marked trails lead about 1/4 mile east and south over the hill to the rock sculpting galleys and then up hill to the granite quarries. The largest pit is dry. A smaller water filled pit is about 50 meters north. Please be aware of regulations posted near the parking area and take care near the quarry edge.

* Croton Point County Park, Croton
This is a landform that shows a very diverse origin. Walking south along the beach from the main parking and picnic area you will find a great variety of igneous, sedimentary and metamorphic rocks.

* Bedford Road Exit of the Taconic State Parkway, Pleasantville
A long road cut was made here for a new exit from the Taconic State Parkway. The Fordham Gneiss shows its variety of lithologies from distinctly banded gneiss to cross cutting dikes and migmatites (partial melting).

* Snowflake Marble Quarry, Thornwood
The Town Center shopping plaza was constructed in an old marble quarry. The pure white, coarse grained marble was valued as an attractive building stone. The upper walls of the quarry show the marble interfingering with Manhattan Schist.

* Migmatite (mixed metamorphic & igneous body) along Interstate 684 north of Bedford Road, Mt. Kisco
(Walk about 200 yards north of Bedford Road along the west side of I 684.) The depth at which these rocks formed was so hot that partial melting took place. Dikes and a xenolith can be observed in the road cut.

* Orchard Beach (North end), The Bronx
Walk to the north end of the beach and continue onto the bedrock surface. Glacial erosion and wave action have exposed a variety of rock types and intrusive structures. Note how weathering is related to lithology.

* Peekskill Xenolith
You can see a large boulder of white Inwood Marble that fell into the then molten black Cortlandt gabbro (norite). It is located at the end of the entrance ramp from Louisa St. onto Route 9 northbound. Pull over just before the first overpass.

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Glacial Features
* Large Erratic: 1/2 kilometer west of the main parking lot and 50 meters north of the trail, Rockefeller State Park
* Perched Erratic: Along Route 121 approaching North Salem. Many interesting legends account for this unusual formation.
* Fjord: Hudson River north of Peekskill. (The best view is from Charles Point) Look north to the Bear Mountain Bridge.
* Esker: Along Mountain Brook Road, about 50 meters south of Route 6, about 1 km west of the library in Shrub Oak
* Glacial Polish & Striations: Just east of Union Church, Pocantico.
* Drumlin: 100 meters east of Broad St. via Whippoorwill St. in Yorktown. Treelawn St. runs along the spine.

Bibliography of Westchester Geology

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Do you know of a noteworthy addition, or a correction that should be made to this listing? If so, I would like to hear from you. (See e-mail contact below.)

WESTCHESTER GEOLOGY FIELD GUIDEBOOK:

Click on the title to download the text (without diagrams) of Thomas McGuire's 10^9 Years, A Guide to the Geology of Westchester County, New York (About 100 pages, or a file of about 200k, which I estimate to have a download time of about a minute at 56k baud rate). This book was published by the Rochester Mineralogical Symposium in 1991. The major part of this book is the 14 excursions (with road logs) to locations of special geologic interest within and near Westchester County. There is no fee to download this document. You will probably want to open the downloaded text file from within a word processor application. Print as much or as little as you want. Although the book is out of print, loan copies (including the diagrams) are available through the Westchester County Libraries. (Search by author.) Click here to find it!

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EARTH SCIENCE BOOKS:

Thomas McGuire is the author of five Earth Science books. Some schools order these as expendable basic textbooks. The most recent New York State Regents exam edition is Reviewing Earth Science: The Physical Setting (2000). There is now a new book for middle schools or schools outside New York; Earth Science, Reviewing the Essentials. A full secondary Earth Science textbook is due in 2004. Click here to find them. (2001). Amsco School Publications, 315 Hudson Street, New York, NY 10013. Phone: (800) 969-8398

My free 52 color image program, "Glacial Legacies of New York State" is available as an Adobe Acobat (.pdf) file at the Paleontological Research Institute web page. Be warned that images will take a long (!) time to download if you are using a slow (28.8 or 56k) home modem. TIP: Download this image series at school or work.

To contact the author: E-Mail to Thomas McGuire , Cave Creek Digital, 38846 North Spur Cross Rd., Cave Creek, AZ 85331.

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First posted February, 1997. Revision of May 18, 2003