How did the lake get the way it currently is? Is it a man-made lake with no natural outlet?
Arkansas
Arkansas?
Yes, it is a man made lake created and managed by the Arkansas Game and Fish Commission (AGFC). It's dammed on the southern side. The outflow from the dam forms Palarm Creek, feeds Grassy Lake (at certain times of the year for waterfowl habitat), and continues on to where it joins the Arkansas River at Palarm, Arkansas.
I suppose "the outflow from the dam forms Palarm Creek" isn't exactly correct, since Palarm Creek was there before they dammed it to create the lake :)
There's a bit more information on the AGFC page here : https://www.agfc.com/en/zone-map/fishing-map/579/
Lake Conway is the largest Game and Fish Commission lake and the largest lake ever constructed by a state wildlife agency. Because of its large size, central location and excellent fishing, it has been one of the state's favored fishing spots since it was built on Palarm Creek in 1948. Lake Conway was the first lake constructed by the Arkansas Game and Fish Commission.
I see. Since it is man made, it has to be maintained differently than a natural lake.
I'm so glad they're doing this. The process and what happens as a result is so cool. I'm glad to know about it.
For sure, it's going to make some local people very angry for ~2 years while the lake is empty but it should make things better in the long run. Plus we get to see what Palarm Creek is like without it being dammed... should be interesting. I used to kayak Palarm Creek, starting at the dam to the Arkansas river, when it was at flood stage and I'm super curious to see what it's like without the dam. I'm assuming they're going to just let the creek channel as it wants and leave the dam open. It was insane to float through an area that is normally a small creek maybe ~1m deep (because of the dam) when it's flooded hundred of hectares and you can just paddle around through a forest.