Is 686 chains as long as Maxwell Montes?
It's about one-and-three-tenths times as tall as Maxwell Montes
The height of Maxwell Montes is about 550 chains.
(Ishtar Terra, Venus)
Maxwell Montes rises to a total height of 550 chains. Since Venus does not seem to have the kind of tectonic activity which gives rise to mountains on Earth, the origin of the Venusian mountain remains the subject of some dispute.
There's more! See other comparisons to 686 chains...