<div dir="ltr">A few years back I went kayaking in a series of water bodies created out of old iron ore mine pits [1,2] in northern Minnesota. These open pit mines were abandoned over 30 years ago. These were some of the clearest lakes I've ever seen. For those not familiar with Minnesota, it's state motto is "Land of 10,000 Lakes" which seems ironic when they felt the need to create a few more. <div><br></div><div>I'd be in favor of creating a tag that describes that they were formed by mining. I'd like to see tags that add to the existing natural=water and water=lake/pond tags. That way we can incrementally improve the information without having to change any existing water body.<br><div><br></div><div><br><div><br></div><div>[1] <a href="http://openstreetmap.org/#map=15/46.4896/-94.0006">openstreetmap.org/#map=15/46.4896/-94.0006</a></div></div></div><div>[2] <a href="https://en.wikipedia.org/wiki/Cuyuna_Country_State_Recreation_Area">https://en.wikipedia.org/wiki/Cuyuna_Country_State_Recreation_Area</a><br></div><div><br></div><div>Best,</div><div>Clifford</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Dec 24, 2020 at 11:56 AM António Madeira <<a href="mailto:antoniomadeira@gmx.com">antoniomadeira@gmx.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">If it's not a lake, in the sense that it's not natural, why use<br>
water=lake at all?<br>
And if it's a small area, say with a radius of 30 meters, would that be<br>
a lake=quarry or a pond=quarry?<br>
I would say that 90% of the times you can easily spot a body of water in<br>
an old quarry from its surroundings. In the few cases that you can not<br>
spot that from aerial images (mostly because they have decades or even<br>
centuries old), you'll not be able to say if it's a lake or a pond or<br>
the spot was already adopted by the locals as a lake or a pond, with a<br>
proper name. So I would definitely go with a new tag.<br>
<br>
Às 15:24 de 24/12/2020, Shawn K. Quinn escreveu:<br>
> On 12/24/20 11:22, Brian M. Sperlongano wrote:<br>
>> A commenter on the reservoir proposal[1] pointed out the existence of<br>
>> quarry lakes[2], which is a lake that is formed after a quarry has been<br>
>> dug after a mining operation. It was suggested that such bodies of<br>
>> water should be tagged separately from other lakes with a tag such as<br>
>> water=quarry.<br>
> [...]<br>
><br>
>> Should quarry lakes be tagged as a subset of lake, something like<br>
>> water=lake + lake=quarry?<br>
> Yes, this is how I personally would prefer to tag these.<br>
> water=quarry_lake smells too much like the disaster that is<br>
> amenity=ice_cream.<br>
><br>
<br>
<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>@osm_washington<br></div><div><a href="https://www.snowandsnow.us" target="_blank">www.snowandsnow.us</a></div><div>OpenStreetMap: Maps with a human touch</div></div></div></div></div></div></div>