Mount Blackburn is a massive, flat-topped mountain, 3275 metres (10,744.8 ft) high, standing just east of the Scott Glacier

Scott Glacier (Transantarctic Mountains)

The Scott Glacier is a major glacier, 120 miles long, that drains the East Antarctic Ice Sheet through the Queen Maud Mountains to the Ross Ice Shelf...

 where it surmounts the southwest end of California Plateau

California Plateau

California Plateau is an undulating ice-covered plateau, long and from wide, which rises to at the eastern side of Scott Glacier. The plateau reaches a maximum height of in Mount Blackburn at the southern end. The northwestern side of the plateau is marked by the steep rock cliffs of Watson...

 and the Watson Escarpment

Watson Escarpment

Watson Escarpment is a major escarpment in the Queen Maud Mountains, trending northward along the east margin of Scott Glacier, then eastward to Reedy Glacier where it turns southward along the glacier's west side. Somewhat arcuate, the escarpment is nearly 100 nautical miles long, rises...

, in the Queen Maud Mountains

Queen Maud Mountains

The Queen Maud Mountains are a major group of mountains, ranges and subordinate features of the Transantarctic Mountains, lying between the Beardmore and Reedy Glaciers and including the area from the head of the Ross Ice Shelf to the polar plateau in Antarctica...

.

It was discovered by and named for Quin A. Blackburn, geologist, leader of the Byrd Antarctic Expedition geological party which sledged the length of Scott Glacier in December 1934.