tag:blogger.com,1999:blog-5211670216140060946.post3927442925489945753..comments2024-03-17T18:37:36.377-07:00Comments on Geotripper: Picture of the Day - Sierra Nevada FoothillsGarry Hayeshttp://www.blogger.com/profile/00531226195147986457noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-5211670216140060946.post-58540908555243437762008-03-23T18:49:00.000-07:002008-03-23T18:49:00.000-07:00Is that one of the foothill latites?Is that one of the foothill latites?Silver Foxhttps://www.blogger.com/profile/03131032620978696727noreply@blogger.comtag:blogger.com,1999:blog-5211670216140060946.post-39299984743754245252008-03-23T17:37:00.000-07:002008-03-23T17:37:00.000-07:00Is it an example of inverted topography? A lava fl...Is it an example of inverted topography? A lava flow filled a valley, and then became stronger than the rock on the former ridgeline, so the rivers excavated the old ridgeline and left the old valley high and dry?Kimhttps://www.blogger.com/profile/07738706550175991130noreply@blogger.comtag:blogger.com,1999:blog-5211670216140060946.post-73201143474385386012008-03-23T16:36:00.000-07:002008-03-23T16:36:00.000-07:00I see columnar jointing...I see columnar jointing...Ron Schotthttps://www.blogger.com/profile/10020094512548523216noreply@blogger.com