Solve these clues to fill the grid.
- Plutonic igneous rock having visibly crystalline texture
- 2 Across
- A sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
- 6 Across
- A state in southwestern United States
- 9 Across
- The act of encamping and living in tents in a camp
- 10 Across
- The enormous gorge of the Colorado River in northern Arizona
- 11 Across
- A member of the Shoshonean people of northeastern Arizona
- 13 Across
- A sedimentary rock formed by the deposition of successive layers of clay
- 14 Across
- A member of an Athapaskan people that migrated to Arizona and New Mexico and Utah
- 1 Down
- Pit viper with horny segments at the end of the tail that ___ when shaken
- 3 Down
- A person who is born while the sun is in ___
- 4 Down
- A long walk usually for exercise or pleasure
- 5 Down
- The second largest reservoir in the United States
- 6 Down
- A sedimentary rock consisting of sand consolidated with some cement
- 7 Down
- Large black bird with a straight bill and long wedge-shaped tail
- 8 Down
- Line that is the commercial organization responsible for operating a system of transportation
- 12 Down