Ya wake up early one morning. Pack the heavy canvas pack & small rock bar drive 1/2 ways across TX to a little known river crossing. Spend hours in 100 plus degree sun looking for a rock. After hours & a truck load of it ,we still hate to leave because you know there is at least one more primo material that has been overlooked. Oh and love every minute of it ! Man I can't wait to go again ! WAH HOOOO! ROCK RUN! We'll take my truck!