Selections from the Lowell Observatory Archives

Arizona Lumber and Timber Company Sawmill from Mars Hill

Arthur Adel

Baronial Mansion Den Fireplace

Baronial Mansion Guest Bedroom

Baronial Mansion from the Front

Baronial Mansion from the West

Black and white drawing of Mars by Percival Lowell, 1901

Carl O. Lampland

Clyde Tombaugh

Clyde Tombaugh at 13-inch Telescope Eyepiece

Clyde Tombaugh at a Zeiss Blink Comparator

Clyde Tombaugh at door of 13 inch Telescope

Color drawing of Mars by Percival Lowell, 1905

Constance Lowell

Constance Lowell at Percival Lowell's Mausoleum

Discovery Channel Telescope

Discovery Channel Telescope Dome

Discovery Channel Telescope Dome and Moon

Discovery Channel Telescope Groundbreaking, July 12, 2005

Discovery Channel Telescope Site

Drawings of Mars by Percival Lowell, Wrexie Leonard, and T.J.J. See

E. C. Slipher

Flagstaff Mesa and Observatory Site Looking West, April 30, 1894

Complete Recording of Staff Meeting, June 3, 1974 (Part 1)

Complete Recording of Staff Meeting, June 3, 1974 (Part 2)

Dedication of Lowell Observatory's Planetary Research Center, May 3, 1965 (Part 1)

Dedication of Lowell Observatory's Planetary Research Center, May 3, 1965 (Part 2)

Dedication of Lowell Observatory's Planetary Research Center, May 3, 1965 (Part 3)

Meeting in the Planetary Research Center, September 30, 1967

National Historic Landmark Ceremony for the 24-inch Clark Telescope, June 14, 1966

Pluto 50th Anniversary -"Milton Humason, W.H. Pickering, & The Discovery of Pluto." Gibson Reaves Colloquium Talk, July 22, 1983

Stu Jones explaining V.M. Slipher's Research on the Redshift of Galaxies, July 7, 1983

Talk by Henry Giclas about Flagstaff and Lowell Observatory, May 5, 1978

Transfer of Lowell Observatory Trusteeship, September 29, 1967

Flagstaff It Is, April 16, 1894

Letter from Citizens of Flagstaff to A.E. Douglass, April 17, 1894

Letter from Percival Lowell to A. E. Douglass on Selection of Flagstaff as Site for an Observatory, April 10, 1894

The Founding of Lowell Observatory

Trustee's Deed for Lowell Observatory, March 11, 1895

Wrexie Louise Leonard's Scrapbook Number 1 (Cover)

Wrexie Louise Leonard's Scrapbook Number 2 (Cover)

Wrexie Louise Leonard's Scrapbook Number 3 (Cover)

Mars Map, 1903

Mars Map, 1905

Mars Map, 1911

Mars Map, 1896-1897

Mars Map, 1898-1899

Mars Map, 1900-1901

Mars Map, 1901

Deed Issued to Percival Lowell for Property to Build an Observatory in Flagstaff

First Observation Notes of Mars by Percival Lowell in 1894

Letter from A.E. Douglass to Percival Lowell, May 10, 1894

Percival Lowell's Last Observation Notes, 1916

Telegram from A. E. Douglass to Percival Lowell Telling of Ground Being Broken for Observatory, April 23, 1894

Telegram from Percival Lowell to A. E. Douglass Regarding Telescope Dome Preparations, April 16, 1894

Telegram with Venetia Burney's Suggestion of the Name Pluto for Newly Discovered Planet