Spent six hours at Mt Korong. While Nigel check the tagged control sites I worked on extending the map in the areas where the courses go to the edge of Alex Tarr's mapping. We then went and rechecked all the queries re control sites. The good news.. everything was where i said it should be. The issues were all about mapping interpretation. I ended up making a few changes to the original map. One consistent issue is the mapping of boulder fields. A linear boulder field does not imply an impassable feature, but when approached from some directions it is perceived as an impassable cliff. In each case where the cliff/boulder field was impassable, I changed the map to give that information to the runner.
Sober note. In 3 hours I mapped an area 100 metres by 130 metres. At this rate a square kilometre will take about 250 hours. The rest of the map would take me 1000 hours. By the fourth mapping trip I am getting better at the task. Edges matched up today and I was making quicker decisions about features. I am probably still tending to map too much detail, despite trying very hard to simplify.
It is far steeper than anywhere on the courses, and if you end up here you deserve what you find, which won't be controls. Hopefully this will be good enough to get you back out.