1. Where mud is globbed on faces and allowed to dry rock hard. 2. We pulled the kayaks out of the water and found a dry rock . 3. Additionally, dry rocks extend almost beyond its northwestern edge. 4. I think hot dry rock has a better potential. 5. Hot dry rock , however, exists below the surface everywhere. 6. Some crews actually rope cell phones down to high and dry rock climbers to get information. 7. Since water is thought to be essential to life, it's unlikely the dry rock ever contained life. 8. This approach is called hot dry rock geothermal energy in Europe, or enhanced geothermal systems in North America. 9. This leg of the trail is characterized by sandstone outcroppings, some of which form natural dry rock shelters. 10. Heat could be pumped out of the hot, dry rocks or volcanic magma underlying parts of the world.
