Estimating Altitude

Just a quick post for today. A rule of thumb for estimating your altitude is:

At 1500′ you can see the legs of horses

At 1000′ you can see the legs of cows

At 500′ you can see the legs of sheep

Anybody have any others? These aren’t very helpful if you’re a city slicker. Hell, sheep aren’t even that common in the U.S. But one of the skills that’s good to practice is estimating distances and altitudes without using your instruments–both good when something fails, and it keeps your eyes outside more when you’re VFR.