[Talk-us] Potential vandalism in Northern California (Pokémon Go?)

[Andy Townsend]

On 06/12/2017 17:49, dilys120 at gmail.com wrote:
> I'm not sure whether this has anything to do with Pokémon Go but a 
> mapper has been adding parks on top of existing boundary relations 
> (National Parks, National Forests, Wilderness Areas) in a systematic 
> manner in Northern California, creating quite a mess.

Hello US folks,
The mapper who made these original edits is long gone from OSM, so what 
remains is largely a "data tidying exercise".

For info, I've looked at Shasta-Trinity National Forest and deleted the 
main _duplicate_ Shasta-Trinity NF way 
http://osm.mapki.com/history/way.php?id=487220873 (the original 
http://www.openstreetmap.org/relation/70010/ hasn't been edited for 12 
months as so is presumably OK).  I'll also look at the smaller 
duplicates added by http://www.openstreetmap.org/changeset/47829109 .

It'd be great if other people could have a look at some of the 
duplicates highlighted within the parent post with a view to removing 
duplicates in the other ones too.  Someone's already (correctly in my 
view) removed "leisure=park" from at least some of these.

There's also scope to map the landuse etc. within the national forest 
boundaries such as http://www.openstreetmap.org/way/418301052 better, 
but that will need more local mappers with local knowledge (of whom 
there are never enough to go around).  Currently in that example there 
seems to be only http://www.openstreetmap.org/way/64298706 , which is 
another import.  It's clear for example that the trees in the imagery at 
http://www.openstreetmap.org/edit#map=17/40.61757/-122.94615 don't match 
what has been imported.  Areas such as this are a good drive from major 
population centers, but there are newish mappers popping up around 
Eureka and Redding so it'd be great if they continue and in the future 
add what they know about these areas too.

Best Regards,
Andy Townsend (DWG member and very occasional hiker in Northern California)