For those interested, here are some links to a few gravel suppliers that have images of their products that can be used as textures (click on the images for a larger sample).
http://www.3hlandscapeproducts.com/prod ... oduct=rock
http://www.ayerssupply.com/decorative_gravel.html
http://www.finlaysstone.com.au/landscaping.html
http://www.arnettslandscaping.com/prairiematerials.html
http://www.3hlandscapeproducts.com/prod ... oduct=rock
http://www.ayerssupply.com/decorative_gravel.html
http://www.finlaysstone.com.au/landscaping.html
http://www.arnettslandscaping.com/prairiematerials.html