Since signing up, over the last few days, I've been frantically adding large amounts of data to the Conwy valley area, roughly from Tal-Y-Bont to Betws-Y-Coed, in the valley and up in the hills to either side. Where possible I've been going over my old gps tracks and using them (they are quite accurate). Since discovering that it is OK to use Bing and Ordnance Survey Open Street Data (or whatever it is called) via JOSM, I've added far more detail using them. The area is quite poorly covered, and I am trying to get a decent amount of detail on the map. I am mostly concerned with adding paths, tracks and roads, as I want to get a routeable map of the area to use with my gps (thanks to TalkyToaster's weekly conversion of OSM to Garmin img format of the UK).
Some examples: The roads in the area between Eglwysbach and Llanrwst were poorly covered, with whole roads missing. I added one major section of road from a cycle trip with my GPS (I bumped into the Google Mobile on the way, which was out mapping Street View data at the time!). The rest of the roads were added using Bing and OS Street Map Data. I tidied up a few roads added by other users which were significantly out from the OS and Bing data. I also traced an area of woodland in this area, and added paths from a hike from a few months ago up to the view point of Cadair Ifan Goch. Extra paths were added tracing the gaps in the woodland using OS Open Data, and confirming with Bing.
I've also added large amounts of tracks to Gwydyr forest above Betws-Y-Coed. Again some were take from a cycle trip, but most were traced from OS and Bing. I've left the traced tracks ungraded, as I cannot say what they are like on the ground. Also many of these tracks may actually be Forestry Commission/farm roads, but I've marked them as tracks for now, as I don't know which suitable for cars (rather than 4x4s) and which are open to car access by the public. They should mostly be open to walkers and cyclists. If you use OSM to visit the area, please try to update information about these tracks. I've yet to add the forest itself, but will probably do so over the next few days.
I've added the water pipelines that come down from Llyn Cowlyd and Coedty Reservoir down to the water works at Dolgarrog. However, I discovered that these do not display on the map (man_made=pipeline, type=water, location=overground). After much pratting about, I tried tagging them also as a water feature (drain), and named them "Water Pipe" so people can distinguish them from all the streams in the area (there is also concrete channel running around near the pipes, which is currently tagged as a stream). They are a significant feature and it is useful for hikers to see them on a map. If anyone knows of a better way to to this, please feel free to make the changes.
That's all for now.