Many thanks to Anders for hosting this weeks challenge. He was a little bit early posting, on Thursday, so there are a couple of late entries for last week's Water theme posted after his theme post. LOL.
'Rocks' is quite a good theme for me, as they feature in a LOT of photos I've taken over the last few years, particularly on my trips with Joanne to Nevada, Utah and Arizona. In fact, it was difficult trying to narrow it down to three!! I've tried to go for variety with my shots:
1) A close-up of cinder-rock from one of the lava-flows at Sunset Volcano crater, Arizona. A fairly young volcano, it erupted approx 900 years ago.
2) Stack Rock, Pembrokeshire coast, Wales. Slowly losing it's battle against the sea.
3) Sandstone formation at Valley Of Fire state park, Nevada. I call it the 'ET Rock'