These may be the Rocky Mountains. This painting was made in 1978 and is signed by C. Dimming. It is painted on canvas board and is in great condition. The blue speckled frame measures 17 1/2 by 14 1/2 inches and has a tiny seam gap (which you can see). The painting measures 11 1/2 by 8 1/2 inches.
If you are interested in this listing but live outside USA, contact me and I will calculate shipping.