Scott's Little Corner of the Web
- The World of Maps & GPS -
 
 
Home > General Interests > Maps & GPS 

Table of Contents (this page is still pretty rough around the edges) 
 
 
 
I Love Maps!
 
 
New maps, old maps, it doesn't matter.  I find them all facinating.  They are useful tools, but there is also something beautiful about them. 

Map Links:  

Expedia.com - Maps Overview 
GlobeXplorer 
Home Page - The National Atlas of the United States of America 
MSN Maps & Directions - Home 
Tom Harrison Maps 
TopoZone - The Web's Topographic Map 
U.S. Geological Survey Home Page 
USGS National Mapping Information Home Page 
Welcome To MapQuest.com! 
Yahoo! Maps and Driving Directions 

TerraServer V5.0 Homepage  
Tiger Map Server Browser 
Earth and Moon Viewer 
Try the Eagle Geocoder 
U.S. Gazetteer 

USGS GNIS (GNIS)  
DigitalGlobe 
Keyhole Earthviewer.com 
Digital Mapping and Aerial Photography by MapMart 
Maps & Geography Online Maps, Games, Information (National Geographic) 

Map Collections Home Page Library Of Congress  
View USGS and Aerial Photos Online 
 
 
 

Global Positioning System 
Trilateration is a mathematical principle that is used by GPS receivers (GPSr) to calculate your position on the earths surface. 

Links: 

  • How GPS receivers work - very good, yet understandable explaination.
  • Maporama - not the best map service on the net, but it will return coordinates (Lon/Lat) when you input a street address.
  • KeenPeople.com - an open community of GPS users, hikers, geocachers, outdoors enthusiasts
Notes: 
For Latitude: 
1° = 69.047 statute miles or 60 nautical miles 
1' = 1.15 miles or 6076.11549 feet or 1 nautical mile 
1" = 101.26859 feet 
The above holds true for Longitude at the Equator. 
 For a more indepth description go to: The Earth according to WGS 84 
 
 
 

Geocaching 
Are you wondering what  geocaching is (pronounced "geo-cashing") and how does it work?  Geocaching is a new rapidly growing sport that is essentially a high-tech treasure hunt. Geocachers use a GPSr (global positioning system receiver) to help locate a hidden cache (the "treasure") which has known coordinates, and lies hidden somewhere in the outside world.  The coordinates are posted on a central website (www.geocaching.com) and geocachers can search for cache locations using zip codes, regions, or city names.  Once they’ve identified their destination, they use a GPSr to get them there.  A handheld GPS device (starting at about $100) looks approximately like a small cell phone and reads signals from several orbiting satellites, allowing users to determine their coordinates anywhere in the world to within a few feet.  The caches, or treasure boxes, are typically small weatherproof containers like ammo boxes or Tupperware containers, and they usually contain a logbook, a pencil, and a handful of trinkets.  The idea is to find the cache, sign the logbook, and if you take something you should leave something behind.  It is great fun and the best part of it is usually the hunt. 
 
  
Links: 
Geocaching.com - the official geocaching site.  Go here to learn all about geocaching! 
Visit Buxley's Geocaching Waypoint for maps, statistics and more! 
Maxwell's Update to the Geocaching FAQ 
Geocaching Worldwide 
Fresno Bee article - High-tech hide & seek: Hobbyists use global positioning systems and the Net to find hidden 'treasure.' 
Stats Button HTML Code Generator - shows you how to put a GeoCaching stat button on your web page 
Geocache map of California 
 
My Stuff: 
Geocaches that I have found 
NGS Benchmarks I have found 
My Travel Bugs 
Geocaches that I have hidden 
Typical Cache Note 

Terminology: 
Geocache = Amazingly popular high-tech hide-and-seek game. 
TNLNSL = Took Nothing Left Nothing Signed Log 
FTF = First To Find 
TFTC = Thanks For The Cache 
 

 
 Copyright © 2003-2004 Scott Toste
Last updated: 5/3/2004