Cinder cone <https://www.flickr.com/photos/24844563@N04/54225539143/in/dateposted-public/> Lava flow and cinder cones <https://www.flickr.com/photos/24844563@N04/54225304201/in/dateposted-public/> Abstract <https://www.flickr.com/photos/24844563@N04/54225542474/in/dateposted-public/> Olympus E-M1 Mk II and Panasonic 14-45 zoom. Enjoy! --Peter