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I stole this image.
Lightening is pretty tricky to photograph. Rarely will a strike be close enough to you but that a telephoto lens will be needed, which i did not have. Then there is the randomness of lightening.
One way was to aim the camera the direction that had activity, open the lens and see what happens.
On a tower where the area of concern might be 20 to 30 miles in each direction that was a LOT of area to point a camera.
The Cabinet range of mountains along the montana/idaho border filled by view to the West, and Glacier Park to the East.
Canada was within vision distance, but there were no prominent mountains within view, so we weren't sure what we were looking at!