Sunday, February 21, 2010

Boulders, Boulders, Boulders










From Chattahoochee Bend

Boulder count is about 300. Ocad (the map CAD software) has a feature where it will count all instances of a symbol. 300 seems like a lot, but it's not really. The Red Top State Park map, by comparison, has around 1500 boulders. Of course, I am still not halfway done with this map, so the number of boulders will certainly climb. What is unique about Chattahoochee Bend is that the boulders are not evenly distributed (like they are at Red Top). They are in bands, running across the map. And they are much larger than the boulders at Red Top. The largest I have found so far is 16 meters by 20 meters and 5 meters tall. That's big enough to be mapped "real size". Instead of using a black dot or triangle, the boulder is drawn in black to scale on the map - impressive.









From Chattahoochee Bend










From Chattahoochee Bend










From Chattahoochee Bend










From Chattahoochee Bend










From Chattahoochee Bend


It is also very challenging to map so many boulders. I spent five hours on Saturday doing an area only about 300 meters square. Deciding what not to map is very important, as is deciding which symbol to use - small dot, large dot, triangle, irregular triangle, or mapped to scale. Here's a small example:
From Chattahoochee Bend

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