Water track to Ocean
I would like to find an app the uses my current (or any selected) location to both trace and provide a list of waterways that are the most direct drainage to an ocean or salt water.
e.g., I'm on a ridge in Montana and spill some water on one side of the ridgeline. Will that water eventually work its way down several named or un-named creeks etc. to the Snake River, Columbia River, Pacific Ocean, or to the Missouri, Mississippi, Gulf of Mexico?
A trace on Google Earth/Maps and a list of named/[un-named] waterways enroute would be fabulous.