Whats the altitude of preston?

[Team Snyder]

I'm curious if anyone knows the altitude of Preston ID. Basically any info, the top, bottom, middle. Whatever elevation data you have let me know. I'm trying to figure out which way to tune my sled, and prestons my main place to ride.
Thanks.

 

[4GR8X]

Greetings Team Synder,

Preston, Idaho airport = 4728'
Copenhagen parking lot = 7398'

Craig.

 

[Team Snyder]

Thanks!

 

[Team Snyder]

So let me ask you (or whoever). If I was to ride preston ID, Arco, ID and Island Park ID. Should I clutch my system for 6-8000 or 8-10000 ?