There are some awesome powerlines spanning valleys in Idaho near the
Snake River and let me tell you they are a loong way up from the bottom
of the valley, easily 500', probably 1000' or more.... Some of the
lines are on the sectional. I've never seen a power line on a sectonal
marked with obstruction footage, but they might exist.

john smith wrote:
In article ,
Ron Natalie wrote:

Power lines are marked for use as visual landmarks, NOT as obstructions.

Unless it is a catanary spanning a valley.