on verso, signed by artist, lower right in graphite: Robert Adams 1996; lower left in graphite: Broken trees, next Box Springs Mtns., / east of Riverside, California, 1982; lower center in graphite: 7.7.98 / The Angel Tree -- / To Dan and Mary
Mary and Dan Solomon; purchase and gift to NGA, 2006.
- Adams, Robert. Los Angeles Spring. New York, 1986: 55.