[Talk-us] US Bureau of Land Management Boundaries

[brad]

Ian,
I want to import this data because I think its important for a complete 
map.   We have national forest, wilderness  and national park boundaries 
in OSM!   This is no different.   If you look at many maps they show all 
of them.

I'd like it to show up on any map that I use.   I'm working on a 
'better' version for garmin using mkgmap.   I hope it gets rendered with 
OpenAndroMaps too.   I haven't used the onine osm.org map very much.

I am excited to participate and improve OSM and in my opinion this is a 
big gap in the OSM database.   Where I live, we don't use OSM for 
building footprints, we use it to find our way in the national forest, 
the BLM land and the national parks.   It's very useful to know what is 
public or private land.

Brad

On 1/5/19 8:19 PM, Ian Dees wrote:
> Hi Brad, thanks for proposing this import and posting it here.
>
> I would strongly prefer that we not import boundaries like this into 
> OSM. Boundaries of all sorts are almost impossible to verify with 
> OSM's "on the ground" rule, but BLM boundaries in particular are such 
> an edge case (they have no other analog in the world, really) and 
> almost never have apparent markings on the ground to check. Since 
> these boundaries aren't visible, this data can never be improved by an 
> OpenStreetMap contributor. The boundaries are defined by the 
> government, and any sort of change to them would make them diverge 
> from the official source.
>
> But having said that, I'm curious why you wanted to import this data? 
> Did you want to have it show up on the osm.org <http://osm.org> map? 
> Are you trying to build a custom map? Or are you excited to 
> participate and improve OSM? If it's the latter, there's lots of other 
> data that is a better fit to import into OSM: address points and 
> building footprints come to mind, for example.
>
> -Ian
>
> On Sat, Jan 5, 2019 at 9:03 PM brad <bradhaack at fastmail.com 
> <mailto:bradhaack at fastmail.com>> wrote:
>
>     I'd like to import BLM (US Bureau of Land Management) boundaries into
>     OSM.    This is not an automated import as you can see from my
>     workflow.
>
>     Workflow:
>     Download shape file from PADUS (1 state at a time):
>     https://gapanalysis.usgs.gov/padus/data/download/
>     Load into Qgis and filter for BLM boundaries
>     Clean up as necessary (there are some extraneous ways at state
>     boundaries & elsewhere)
>
>     Convert to OSM with ogr2osm and the following tags
>          tags.update({'type':'boundary'})
>          tags.update({'boundary':'protected_area'})
>          tags.update({'operator':'BLM'})
>          tags.update({'ownership':'national'})
>          tags.update({'protect_class':'27'})
>          tags.update({'source':'US BLM'})
>          use the shapefile attribute 'Unit_Nm' as the name
>
>     Import with JOSM
>
>     The San Luis unit (CO) is here for your inspection.
>     https://www.dropbox.com/s/qxv5gny2396ewki/sanLuisBLM.osm?dl=0
>
>     Comments?
>

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