To reallynfind quantity you have to find camps.
Usually on the high side of a creek and realitivly flat. Look for old fire pits. They will be red rocks and many will be white on one side from being used for cooking surface. Also look for piles of old mussel or snail shells. The old ones will be white. When you find those areas you will find tools and arrowheads.
Get you an old golf club and cut the head off it and bend the edge to make a hook. Use this to flip things so you don�t have to be bending over all the time. Hunt them with sun behind your back, flint shines a little and easier to see this way. Go very slow.