Postcard of the Day

[fflo]

 

Comments

[peteralway.livejournal.com]

The last time I passed a sign for the continental divide, I remember noticing that the crest of the hill was such a gentle curve that it seemed hard to see how they could mark it so precisely.

Edges of watersheds are always interesting geographical curiosities. It's crazy how the divide between the Great Lakes basin and the Mississippi basin is so improbably close to Lake Michigan.

[fflo.livejournal.com]

I've thought the same thing about the gentle curve phenomenon! Also I'm also into edges of watersheds. Potential band name: Watershed Edge.

Now I've gotta go look up the Great Lakes--Mississippi basin divide....

[(Anonymous)]

Here's one from wikipedia: https://en.wikipedia.org/wiki/Watersheds_of_North_America#/media/File:NorthAmerica-WaterDivides.png

I just googled North american watersheds

(Peter, too lazy to log in right now)

[peteralway.livejournal.com]

I just googled North American Watersheds, and found this map on wikipedia: https://en.wikipedia.org/wiki/Watersheds_of_North_America#/media/File:NorthAmerica-WaterDivides.png

[fflo.livejournal.com]

Gotta love those little basin pods along the Rockies.

[peteralway.livejournal.com]

Yeah, I was kind of surprised by those--I mean, to they feed into little salt-water lakes like the Great Salt Lake?

OK, so that leads me to the wikipedia article on Endorheic basins.

Wow that's a whole new rabbit hole for me. I guess where the climate is dry enough, depressions like that don't accumulate enough water to fill up, overflow, and erode outgoing drainage.

That darned science.