Monday, December 11, 2006

Maps - Accra and abound can skip this post if you're not planning to visit Ghana, or have no intention of venturing beyond Accra. By the way, you should do both. Yes, this is another commentary on maps.

We've been relying on the Bradt Guide (THANKS BOSTON PROPERTIES!!) to plan our trips. For the most part, information in the 2004 update seems correct and fair. Prices have naturally escalated a bit since printing. One collapsed bridge has been repaired. It is a good guide book specific to Ghana - or as far as we can tell, the only one available in the US.

International Travel Maps "Ghana - scale 1:500,000" is the only map we could purchase in the US specific to Ghana. It is fairly accurate. Togo is correctly indicated to the east. The ocean is correctly indicated to the south. Data to the north, as far as we can tell, should not be relied upon without verification as mentioned in the previous "Aburi and Back" post. A bike trip last week uncovered yet another mapping mistake - locating a hill top village of Larteh in a valley. No worries.

Before heading out of town last Friday morning, we made another visit to the local Department of Surveys (Airport and Gifford Road junction). Here you can buy the much more accurate scale: 1:50,000 topographic maps for any specific area you might want to visit. C50,000 ($5.40) gets you a 24"x36" multi-colored paper sheet that indicates contours, trails, roads, villages, water, structures. With surprisingly accurate for data gathered in 1973, we're only amending whether or not minor roads are still dirt, or have since been improved. Also, we're locating gas stations and police barricades.

Oh look, here is SJD below comparing, overlaying, triangulating and plotting our course.

I'm curious to read comments on GPS usage here. Anyone?

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