page_title: Flag (crater)
hierarchical_section_title: Flag (crater)
caption_attribution_description: English: Flag crater (upper left) and Spook crater (lower right), on the moon. The tiny crater at about 5:00 on the rim of Flag is called Plum crater. The small crater at center is called Halfway, and the similar-sized crater north of Spook is called Buster. Geology Station 1 of the Apollo 16 mission is at Plum, and Station 2 is between Spook and Buster. Sun elevation 27 deg., spacecraft altitude 114 km.
context_page_description: Flag crater is a small crater in the Descartes Highlands of the Moon visited by the astronauts of Apollo 16. The name of the crater was formally adopted by the IAU in 1973. Geology Station 1 is adjacent to Flag, at the much smaller Plum crater.
  On April 21, 1972, the Apollo 16 Apollo Lunar Module Orion landed about 1.5 km east of Flag, which is between the prominent North Ray and South Ray craters. The astronauts John Young and Charles Duke explored the area over the course of three EVAs using a Lunar Roving Vehicle, or rover. They drove to Flag on EVA 1.
  Flag crater is approximately 240 m in diameter and over 20 m deep. The adjacent crater Plum is only about 30 m in diameter. The slightly larger crater Spook, also visited by the astronauts, lies less than 1 km to the east.
  Flag cuts into the Cayley Formation of Imbrian age.
context_section_description: Flag crater is a small crater in the Descartes Highlands of the Moon visited by the astronauts of Apollo 16.  The name of the crater was formally adopted by the IAU in 1973.  Geology Station 1 is adjacent to Flag, at the much smaller Plum crater.
  On April 21, 1972, the Apollo 16 Apollo Lunar Module (LM) Orion landed about 1.5 km east of Flag, which is between the prominent North Ray and South Ray craters.  The astronauts John Young and Charles Duke explored the area over the course of three EVAs using a Lunar Roving Vehicle, or rover.  They drove to Flag on EVA 1.
  Flag crater is approximately 240 m in diameter and over 20 m deep.  The adjacent crater Plum is only about 30 m in diameter.  The slightly larger crater Spook, also visited by the astronauts, lies less than 1 km to the east.
  Flag cuts into the Cayley Formation of Imbrian age.
caption: Apollo 16 image, with Flag left of center and Spook right of center.  Plum is the tiny crater on the southeast rim of Flag.
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