Related Clues:
- Watkins ___ Grand Prix
- 1962 and 1998 orbiter
- Space pioneer
- Mercury 6 occupant
- Deep valley
- Former astronaut/senator
- First American in space
- Place for a stream
- Orbiter of note
- First American to orbit Earth
- Arizona's ___ Canyon Dam
- Highland valley
- Legendary astronaut
- Remote valley
- ''Friendship 7'' passenger