In 1879, Lilbourne Winchell named it Agassiz Needle for Harvard University professor of zoology and geology Louis Agassiz.
Later, the USGS recognized it by its current name.

The peak is named after Swiss-American scientist Louis Agassiz.
The name Agassiz Needle was originally applied to another nearby peak in 1879, likely Mount Winchell, but at some point the name moved to the current peak.
In 1879, Lilbourne Winchell named it Agassiz Needle for Harvard University professor of zoology and geology Louis Agassiz. Later, the USGS recognized it by its current name.
The peak is named after Swiss-American scientist Louis Agassiz. The name Agassiz Needle was originally applied to another nearby peak in 1879, likely Mount Winchell, but at some point the name moved to the current peak.
Mount Agassiz (California)