many user of the Garmin e-Trex bemoan the limited availability of map-datum for they unit . this be not a problem if they have the serial-data lead accessory , the GPSU application , and TextPad 4.6 or Microsoft XL .  by take a good quality map of a area of interest , scan the map and create a bitmap image -lrb- use Photoshop element , for example -rrb- , which be then load into the GPSU application so that a map-data file can be create . this file can then be open in TextPad 4.6 or Microsoft XL so that the datum can be arrange in alphabetical order and catalogue section . it can also be print out if need be .  i do this for northern Ireland by scan a good quality roadmap , and load all the datum into the e-trex . -lrb- e-mail I if anyone want the file -rrb- .  this procedure can be apply to any country or region . the only restriction be the e-trex 's memory capacity .  there be not a ` where be I now ' feature , but select the screen for speed , etc. , bring up a option to display - continuously - where you be and be go , without the need to mark a waypoint , like I do when the e-trex be first get .