This 3-D interactive web map allows showing your current GPS location on a mobile device as you are hiking, while viewing the Randolph Mountain Club’s map of the Randolph Valley, Crescent Range, and Northern Peaks of the Presidential Range as the background.
Of course, a cell-signal is not available everywhere within the area shown on the RMC’s map. Your mobile device will need a cell signal to connect to this website. This web page does not support caching the map for disconnected use. Locations with line-of-sight to the cell tower on Pine Mountain should have adequate signal strength, but many of the drainages and ravines on the RMC map do not permit using a cell phone. Carry a compass, the RMC’s Randolph Paths guidebook and map in your pack, for use where your mobile device is unusable.
The Background Imagery button allows selecting several other choices, which is especially useful when hiking beyond the Randolph area:
- RMC Trail Map
- USGS topographic maps
- Open Street Map
- New Hampshire aerial photos (Spring 2015)
- ESRI world aerial photos
- BING world aerial photos
For easier touchscreen navigation, and to keep all the map control buttons in view, I recommend using the map in Fullscreen mode, and holding your mobile device in Landscape orientation.
Tapping on map control buttons will toggle features on or off.
Tapping on the Location icon opens a message box showing current Latitude, Longtitude, Altitude, and Horizontal Accuracy.
Tapping on the “X” control box closes message boxes.
Map Control “Buttons”
Clicking the FULLSCREEN button in lower-right corner of map toggles between Windows mode and Fullscreen mode.
Clicking the HOME button (house icon) will switch the map into a 2-D, North-oriented straight-down birds-eye view.
Clicking the “3D” button will switch the map back into a 3-D, North-facing view, looking down at 45-degrees from above Mt Adams, towards Randolph.
The “COMPASS” button rotates in whatever direction you pan the camera – clicking the button points the camera North again.
Clicking the “LOCATION” button toggles display of your current location on or off.
Navigation in 3-D is accomplished using standard touchscreen gestures:
Dragging or Swiping one finger pans the camera’s view of the map in that direction.
Spreading with two fingers zooms in.
Pinching with two fingers zooms out.
Spreading or Pinching, with one of two fingers stationary, tilts and rotates the camera angle up, down, left, or right.
Navigation in the 3-D map on a desktop computer with a mouse and keyboard is accomplished using the Shift key, Ctrl key, Left and Right mouse buttons, and a Scroll wheel, if available.
Holding the Shift key while click-and-dragging with the Left button moves the camera up, down, left, or right.
Holding the Ctrl key while click-and-dragging with the Left button tilts and rotates the camera angle up, down, left, or right.
Navigation in the 2-D map is similar, without the ability to tilt or rotate the camera angle.