Canvas with Floating Silver Frame entitled 'Rio Grande River Big Bend National Park TX'. Panoramic picture looking down the Rio Grande River that cuts between immense cliffs. available. Primary colors within this image include: Dark Yellow, Black, White, Dark Forest Green. Made in the USA. Inks used are latex-based and designed to last. Canvases are stretched across a 1.5 inch thick wooden frame with easy-to-mount hanging hardware. Canvas is acid-free and 20 millimeters thick.