Main water or Kitchen Sink SHUT OFF

by J. Feener
(Benton Harbor, MI USA)

I know where my shut-off valves are for my washer and toilets, but can't find the kitchen shut-off. Even if there is a main shut-off, that would help too! Does anyone know where I could look for either the main water shut-off or my kitchen sink shut-off? BTW...The crawl space under my kitchen is nearly impossible to get to!