Help With A Frog

Yesterday on a day off we took a little trip down to Winchester Bay and up to Umpqua Lighthouse State Park to take a bird walk around Lake Marie. It's a beautiful trail around the lake.  The area was filled with bird songs, and the berries of late summer of Thimble Berry and Red Huckleberry gave color to the lush green trail.  The unusual colors on this frog caught my attention and I took some photos.  The trouble is, its a frog I'm unfamiliar with.  It's larger than the normal little Pacific Tree Frog and smaller than toads I've seen.  If anyone out there in blog land has any idea as to the identity of the frog please send me a reply.