[Imports] US Forest Service Data

Apollinaris Schoell aschoell at gmail.com
Fri Feb 4 02:33:19 GMT 2011

Agree that Tiger data is very bad for forest roads and there is no loss if you replace them with better data. Too many of the Tiger roads don't exist anymore and all of them are classified wrong in the forests. In places they have been edited you can try to contact the mappers and ask what they prefer. I haven't done anything in Oregon but even where I did a good import could be better. It's almost impossible to fix all these forest roads by mapping on the ground.

On 3 Feb 2011, at 18:17 , Tom Ponte wrote:

> I am looking into adding Forest Service Road data to OSM here in Bend Oregon. The local forest is the Deschutes National Forest. I contacted the lead GIS person there who is going to check with a few people like the FOIA person and the roads person to see what they think.  I included a link of the wiki import guidelines page for them. Anyway, assuming it is ok with them and I can’t see why it wouldn’t be as it is public data that I believe they create for the most part, I have some questions.
> The FS data is much better than the tiger data spatially and it has the road numbers which correspond to the signs the Forest Service uses for signage unless they are shot to pieces by second amendment intellectuals.  I moved a few roads into place with the imagery west of town but quickly decided this would be a large undertaking especially adding road names. It appears that no one has touched the tiger data in the area of the FS land. I am guessing that is the case for much of the west but I have not checked that out. So if it has not been touched then importing new data would no doubt be a lot easier that if it had.  Many of the existing roads showing in OSM with the tiger data have been decommissioned.
> I looked through the previous posts and read the thread about adding FS trails in New Mexico. One thing that would be easier in that case is if there was no data to compete with in OSM at all. In this case there would be some questions similar to the thread on importing public domain county road data and the different methodologies for dealing with the existing OSM data which is probably more likely to have been edited than most of the FS logging road data.
> But before I get too far along with that is there any talk of updating these roads with newer data like the newer tiger data –(for all forest service districts)? I haven’t looked into how much of that there is in the areas managed by the FS to see it is available or if it is any better – as good as etc. I sort of doubt it is better or as good unless it is now derived from FS data somehow. I am not an expert in all things tiger in case you couldn’t tell.
> My personal interest is mapping for mountain bike trails. I and apparently at least one other person have been adding them in the local area. The problem is OSM is not really all that useful, say if used as a GPS backdrop, if the FS roads in the area frequently have no names – have been closed – are way off spatially etc. The FS does have trail data also but OSM is a good vehicle for MTB trails as they are being added at a feverish pace here like a dozen miles a year. There are also many trails on BLM land that often take years before they get the official stamp of approval with their extensive review process and get mapped.
> Any comments? Any other efforts with FS roads? I do not want to reinvent the wheel with my efforts.
> Tom
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