RHH's photos with the keyword: contrail

Big Oak Flat Trail

Big Oak Flat Trail

RHH
25 Apr 2021 23 10 148
Photographed along the Big Oak Flat trail in Yosemite National Park.
Lines, Planes (Plains?) and Angles

Lines, Planes (Plains?) and Angles

RHH
19 May 2009 1 1 279
Dedicated to my good friend, Valter, the geometry teacher. Perhaps he can find one of the principles of Euclidian plane geometry illustrated in this photo.
Way up Yonder

Way up Yonder

RHH
27 Oct 2012 281
A variation of the picture I posted a few days ago, this one with a contrail above the mountains stretching into the distance. ronaldhanko-orchidhunter.blogspot.com/2012/10/hiking-in-t... ronaldhanko-orchidhunter.blogspot.com/2012/10/hiking-in-t...