Where am I? Iowa Geographic Map Server Geodetic Coordinates From Maps     Google     Topo Maps     Wikimapia (coordinates in url)     USGS National Map Viewer     Graphical Locater (map)     Latitude/Longitude Position Finder Finding Coordinates from Maps and Orthoquads     http://www.trailbehind.com/     Topozone     MSR Maps     USGS National Map Viewer Finding Coordinates from Street Address     Find the latitude & longitude of any US address USGS: Viewing USGS Maps and Aerial Photo Images Online -The links below will take you to selected USGS Business Partner Program (BP) and Cooperative Research and Development Agreement (CRADA) partner sites where you may view USGS maps and aerial photo images from your Web browser. ESAD - MrSid Image Server   (needs javascript on) Query Form For The United States And Its Territories   (needs javascript on) Gospatial Data Gateway   (needs javascript on) Aviation [Navigation] Formulary V1.43   by Ed Williams Ocean Color IDL Library NGS Geodetic Tool Kit - On-line interactive computation of geodetic values. Geodetic Software (Free for PC from NGS) Coordinate and Datum Transformations from Chuck Taylor Datum Conversion Software Comments from David L. Wilson Coordinate Systems & Transformations Geodetic Calculations (Geocentric Datum of Australia) Documentation and Tools for Utilizing USGS Digital Raster Graphic Data GPSTk Geographic Conversion Software & Formulas   Calculators (Navigation) Bouy Locations - Interactive Interactive Nautical Charts Electronic Navigational Charts (NOAA) Great Lakes Waypoints Sectional Aeronautical and Terminal Area Charts VFR Charts and Publications GPS Tutorials The Geographer's Craft Project Notes by Peter H. Dana Coordinate Systems Overview Geodetic Datum Reference Ellipsoids & Datums Geodetic Datum Parameter Library (Germany) GPS Overview Map Projections Internet Resources for Geographers Graphical Locator (gives elevation) Surface Gravity Prediction in the Conterminous USA Querying Canadian Geographical Names Names Files of Selected Countries GEOnet Names Server (GNS) provides access to the National Imagery and Mapping Agency's (NIMA) database of foreign geographic feature names. Approximately 12,000 of the databases 3.3 million features are updated monthly with names information approved by the U.S. Board on Geographic Names (US BGN).   Geographic Area of Coverage: Worldwide excluding the United States and Antarctica U.S. Gazetteer is used to identify places to view with the Tiger Map Server and obtain census data from the 1990 Census Lookup server. You can search for places, counties or MCDs by entering the name and state abbreviation (optional), or 5-digit zip code. AirNav: Navaids AirNav: Airport Information World Aeronautical Database Search FAA Airport Master Record (FAA Form 5010-1) Landings: Search for Airport Records Supplemental Instructions for Area Navigation Approach (ANA) Surveys National Geodetic Survey Data Sheets - Information about survey monuments on record with the National Geodetic Survey (NGS) is published in a Digital Survey DATA (DSDATA) format. The format consists of fixed field records in an 80 column ASCII text file. How far is it? - This service uses the University of Michigan Geographic Name Server to find the latitude and longitude of two places, and then calculates the distance between them (as the crow flies). It also provides a map showing the two places, using the Xerox PARC Map Server. Map Accuracy Standards Reading UTM Coordinates From USGS 7.5-Minute Quads by S. Wormley Reading UTM Coordinates From USGS DRG 7.5-Minute Quads by S. Wormley UTM - Universal Transverse Mercator   © Copyright 2011 - Samuel J. Wormley   by swormley1@gmail.com