junglelaser

I've been using BetterSnapTool for the same thing for 5 years or so now and I love it!

Crater lake doesn't currently have Rivers out or in. The water level is maintained by precipitation and evaporation - so you are right. Opposition from basically everyone. Death valley varies from outflow to inflow every 400 to 500 years currently no outflow iirc so if we want to wait a few hundred years... Interesting ideas though