Creek Pebbles for Question on Mylargescale web site March 12

I puting these shots here so I can ask a question of a couple of folks on Mylargescale web site regarding track stone. 

To Todd and Dave,

I took a few shots to see if it gives you an idea of what I am thinking, these rocks are not smooth as you would see up north, they are rough cut persay but may be still not what your describing.  They are about 1/4" to 1" average being about 1/2" so I am thinking they might be too big. 

On this shot disregard the grey stone left of center, it is too large and way too smooth, that is what Home Depot calls Mexican River Pebble.