Author Archives: Carel Neffenger

February 2025 Atomic Tourism Calendar

Download February 2025 Atomic Tourism Calendar

February’s calendar features the UMTRCA Disposal Site in Green River, UT. Union Carbide Corporation constructed a uranium mill in 1957 and operated the facilty until 1961. In three years, the mill processed 183,000 tons of ore and generated an estimated 114,000 cubic yards of radioactive tailings, covering an area of 9 acres to an average depth of 7 feet. The pyramid shape protects the engineered cell containing the contaminated materials.

UMTRCA Disposal Site, Green River, UT
UMTRCA Disposal Site, Green River, UT

The calendar also lists some intersting February Atomic Events as well as a complete listing of the 86 atomic shots during February from 1951 to 1968.

Download your calendar here:

January 2025 Atomic Tourism Calendar

Download January 2025 Atomic Tourism Calendar

Trinity Site Obelisk in New Mexico
Trinity Site Obelisk in New Mexico

Download your Atomic Tourism calendar for January 2025! This month’s featured image is the monument at the Trinity Site on the White Sands MIssile Range, taken during an open house in a rare moment without people nearby. On the reverse, you’ll find a timeline of some significant Manhattan Project and Cold War atomic events in chronological order. Following that is a complete listing of all atomic shots during the month of January day by day. Get yours today!

Harry Truman taking the oath of office April 1945

Harry Truman and the Bomb

On April 12, 1945, President Roosevelt died of a cerebral hemorrhage. Harry S Truman took the Oath of Office at 7:09 p.m., becoming President of the United States.

“I felt like the moon, the stars, and all the planets had fallen on me.”

Following the Oath, Henry Stimson, Secretary of War, lingered to speak with him about an “immense project.” Truman deferred an in-depth discussion to a later date.

Stimson pressed for an appointment on April 24, and Truman met with him the next day. This letter is on display at the Harry S Truman Presidential Library in Independence, MO.

For more info, see Harry Truman and the Bomb at the National Archives.