nvert between Latitude/Longitude & OS National Grid Reference points Some people have asked me about converting between latitude/longitude & Ordnance Survey grid references. The maths is extraordinarily complex, but the Ordnance Survey explain the resulting formulae very clearly in Annex C of their Guide to coordinate systems in Great Britain. OS Grid References are based on 100km grid squares identified by letter-pairs, followed by digits which identify a sub-square within the grid square, as explained on the OS Interactive Guide to the National Grid. 6-digit references identify 100m grid squares; 8 digits identify 10m grid squares, and 10 digits identify 1m squares. Before going further, I have to mention that, at a fine level of accuracy, there are different ways of measuring latitude & longitude. Note also that an alternative way of expressing OS Grid References is as all-numeric eastings and northings. Beware that eastings and northings can be used either as a grid reference (identifying a grid square), or as a coordinate (identifying a point).
Printable Maps - Reference The National Atlas has prepared reference and outline maps of the United States that you can print or use online. The reference maps display general reference features such as boundaries, cities, capitals, major highways, rivers and lakes, and terrain. Outline maps showing county boundaries, State boundaries, capitals, or other basic features are also available. Maps without labels are included for students and teachers of American geography. The maps are in color, but will also print or copy well in black and white. The maps are available in the following formats. GIF (Graphics Interchange Format) These maps are for use on the World Wide Web and can be viewed in your browser window.
Passing Through India - Passing Through India travel blog Sometimes when you're on the road, you just get swept up by your surroundings. Yesterday was one of those days for me. It was a day where I truly got to experience India and I learned something that might seem like common sense until you've experienced it: it's never a good feeling to be sitting in a police station in a foreign country while people thumb through your passport, look sideways at you and speak seriously amongst themselves in a language you don't understand. My day actually began a few days ago when I took a tour of the tea and spice plantations which cover the steep hillsides of the Western Ghats around Kumily in the state of Kerala. (It's a shame that time, space and power outages have prevented me from documenting those days -- including a tiger and elephant safari two days ago -- but I will say that eating the bark of a cinnamon tree is another one of those experiences that's hard to describe but really worth doing in the flesh.) So I got curious and asked around.
Bill Chadwick's Google Maps Demos GRATICULES & RINGS * Updated 20 Jan 08 * There are three basic types. A Latitude and Longitude Graticule, a UK National Grid Graticule and Range Rings. Range Ring spacing is automatic, fixed or from an array. Rings are labeled every 45 degrees. Accuracy is about 200m in 140km or 20m in 14km at UK latitudes. The Lat/Lon graticule uses HTML divs for its lines and is quick to paint. Both graticules have tooltips on the labels. In this demo, the map's mousepointer position is shown as OSGB 1936 Lat Lon, UKOS Eastings and Northings (metres) and UKOS grid reference. Source code for the Lat/Lon Graticule is here. New !
USDA Forest Service - Caring for the land and serving people. Standard Map Products The Forest Service publishes a variety of map products to help you plan your next adventure or enjoy your next visit! National Overview Maps We've released the next generation Interactive Visitor Map! “A Guide To Your National Forests” is a free brochure showing locations of national forests and grasslands along with contact information. View a Locator Map of our nation's national forests and Grasslands. Forest Visitor Maps, National Forest Atlas, and Wilderness Maps These maps are available for purchase at National Forest Map Store (link is external), U.S. Topographic Maps FSTopo is the Forest Service series of large scale topographic maps. Geo-enabled PDFs.Geotiffs that contain both collar and non-collar editions in a single zipped file.Hard copies are available for purchase at some Forest Service offices, U.S. Motor Vehicle Use Maps Motor Vehicle Use Maps identify those roads, trails, and areas designated for motor vehicle use are available one or more ways: Roadless
GPS Receiver Information, Software, and Hardware Reviews of Garmin, Lowrance, Magellan and other GPS Receivers Flash Earth ...satellite and aerial imagery of the Earth in Flash Trip Report Trip Report: South Dakota (Custer, Crazy Horse, Mt. Rushmore, Badlands), Cheyenne, WY, National Monuments in Western Nebraska - Fodor's Travel Talk Forums Trip Report: South Dakota (Custer, Crazy Horse, Mt. Rushmore, Badlands), Cheyenne, WY, National Monuments in Western Nebraska Thanks to all for helping me plan our trip! Background: My parents (both 58yo) invited Hubby and me (both 30yo) to go to Mount Rushmore and see sites along the way. Here goes: Day 1: Fly into Denver and drive to Nebraska. Flight went off without a hitch. After hitting the shops, we continued on to Cheyenne. The museum was very well done with the third largest carriage collection in the states (my Granny died at 103 years old and often told stories of rides in a covered wagon so this was special for us to see). We stopped at Scotts Bluff monument first. We went on in to Scotts Bluff to find a hotel (Mother and Daddy insisted on “winging it”). Day 2: On to South Dakota We got up and ran a couple of miles then headed to the Agate Fossil Beds. More about the national monuments/historic sites in Nebraska here: Day 3: Hiking and Mount Rushmore