![Young boy with backpack pointing to rock face at Grand Canyon.](http://static.sciencelearn.org.nz/images/images/000/000/740/full/VOL_PEO_PEO_01_DarrenGravley_grandcanyon.jpg?1674164838)
Darren Gravley was introduced to geology by a friend’s dad who took them on a number of field trips, including this trip to the Grand Canyon.
Darren Gravley was introduced to geology by a friend’s dad who took them on a number of field trips, including this trip to the Grand Canyon.