The historic Idaho–Oregon–Nevada highway once ran through Danner, following the earlier Skinner Toll Road. This route opened the region to settlement beginning in 1863, during the American Civil War. Danner is the burial place of
Jean Baptiste Charbonneau (1805–1866), also known as "Pompey" or "Little Pomp" Charbonneau, the infant son of
Sacagawea and Toussaint Charbonneau. Little Pomp Charbonneau was the youngest member of the
Lewis and Clark Expedition. Sacagawea carried him during the expedition's journey from the Missouri River, across the Rocky Mountains, and through the Pacific Northwest to the Pacific Ocean. Charbonneau died near Danner on May 16, 1866, after developing pneumonia while crossing the
Owyhee River. His grave, located near the former Inskip Station, was identified and marked in the 20th century through the efforts of local residents Kirt and Johanna Skinner. It was added to the
National Register of Historic Places on March 14, 1973. A plaque marks the ruins of Inskip Station within view of the Charbonneau grave. Around 1910,
Harley J. Hooker platted the proposed
Ruby Townsite when the
Jordan Valley Irrigation District began constructing a dam and canal system near Danner. The town never developed as planned due to the region's harsh high-desert climate. Around 1915, Hooker built a one-story lava-rock office building, which later served as the community hall. It eventually became unsafe and was demolished. The community was named for early settler
John H. Danner. An application to name the local post office "Ruby" was rejected by the Post Office Department; the name
Danner was approved in 1920. The post office operated until 1942. During the 1930s, Danner had a general store owned by Jesse Anderson, a Danish immigrant. The building remains standing about half a mile south of the Inskip Station site. ==Climate==