on verso, signed by artist, lower right in graphite: Robert Adams 1988; lower left in graphite: 5/30 / Cottonwood, / East of Longmont, Colorado, 1984.; by unknown hand, lower center in graphite: RA.4122.Y
Robert Adams, Astoria, OR; NGA purchase (through Fraenkel Gallery, San Francisco) and gift, 2012.
- Adams, Robert. Cottonwoods. Washington, DC, 1994.