Are you talking about Raven Rock Dragstrip in Portsmouth, OH? I went there a lot when I was a kid! Sorry I don't have any pictures. The first time I saw Gordon Collett he ran there and the Cook Bros. with their hemi rail. Where was Riverside except in California? There is Edgewater in Cinti.
Check out the facebook group site. Raven Rock Drag Strip Memories 1957 thru 1976.
I have lots of pictures of Riverside Raceway in California in our books and on file.