Original acrylic by listed artist Donal Jolley (b. 1933).
This work is framed under glass with a visible area of 8 by 12"
 
It has the artist's original tag and info on the back and appears
dated 1979.
 
Titled "Tahoe V&T RR #20"
 
450
 
Below is from Askart
Donal Clark Jolley (Born 1933) is active/lives in California.  Donal Jolley is known for Western landscape, horses, Indian figure.

A painter and illustrator whose style is sometimes traditional and sometimes abstract, Donal Jolley was born in Zion National Park, Utah (he alleges he, born prematurely, is the only person ever born in the Park), and settled in Rimforest, California from 1970.

In Zion, his father was a chief forest ranger. Donal learned basic drawing in high school and then attended Brigham Young University from where he was drafted into the Army. He won an Army Commendation for illustrations, and then after graduation from Brigham Young worked for ten years as an illustrator.

A favorite medium is watercolor.

Source: "Contemporary Western Artists" by Peggy & Harold Samuels