I think this is where they got the idea for those concrete navigation arrows - Utah-Astronomy - mailman.xmission.com

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Telescope pier

I think this is where they got the idea for those concrete navigation arrows

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Polarizing filter needed

Dave Gary

15 Mar 2015 15 Mar '15

3:12 p.m.

https://www.flickr.com/photos/78046474@N06/16640152359/in/album-721576513788... <https://www.flickr.com/photos/78046474@N06/16640152359/in/album-72157651378870125/>

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Dave Gary