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Ejnar Fjerdingstad - Aug 29, 2012 1:32 pm - Voted 10/10
What isthat line - some kind of tube?
TimB - Aug 29, 2012 1:51 pm - Hasn't voted
Re: What isEjnar,
That line is some sort of dark colored rock that up close almost looks like it was painted on. From a distance however, it looked to me like a giant furrow or ditch.
Fred Spicker - Aug 29, 2012 7:07 pm - Hasn't voted
Middle Teton - Black DikeThe mountain is the Middle Teton
The black rock is a diabase dike.
Dikes are sheet-like or tabular igneous intrusions that cut across sedimentary layering, metamorphic foliation, or other texture of a pre-existing rock.
There is a climbing route directly up the dike - IV 5.6.
Teton Rock Routes
TimB - Aug 29, 2012 7:36 pm - Hasn't voted
Re: Middle Teton - Black DikeThanks for the info, Fred. Appreciated.
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