Telegegraph Poles

I (or somebody else)probably asked this before, and I looked on the net and found 10 different answers, but what is the distance between telegraph poles?
If I was back home in Illinois I could find some along the right of way and measure them, but since I am not, I can't
The answers I have found on the net range from 52.8 feet to 150 feet!!!
First, I am talking about TELEGRAPH POLES, not electrical poles.
Second, I don't want to talk about compression, or what looks good, or "I think it's about"... I can guess too. Please no "about 2 boxcars"
Third, yes I know about Google.
Thanks so much, I am sure somebody needs to walk the dog or get some exercise, and wont mind getting this information. The N, HO, O, and other guys sure have me confused.
We can trump those guys and not worry about compression...

1. Wind load. Poles in FL would be closer together than in AL or MS because of wind loads from possible hurricanes.
2. Ice load. Poles in NJ would be closer than those in NC. Conversely, poles in southern AZ or CA could be further apart.
3. Type of wood the pole is made of. Different woods can take loads (moment or rotational force at a point caused by loads) better than others. Chestnut and Pine are stronger than Juniper, Cedar, and Red Woods.

According to an American Railway Association publication from 1921 (Telegraph and Telephone Section), standard pole spacing was 30, 35, 40, 46, 53, 50, 66, and 70 per mile. There were charts showing what the spacing would be for different zones of area, weight, and type of wood used.
Source(s):
A different type of engineer who loves trains

Found an article that should help:
Gives the kind of answer you want:IT DEPENDS!
It appears to have a range of 75 to 175 feet.
Spacing may be more frequent if you have connections to signals, highways to cross, etc.
Experiment testing different woods by using different stains!

Thanks for an informed and fast answer..this might be why I found so many different answers