Possible Clues:

• From American, 'Yonder gulch'
• Is yon Clementine able to have been found in one?
• Preserve that grand spectacle in Arizona
• Hollow lack of specifics within party
• Deep gorge with steep sides
• Law protects variable feature of river valley
• Deep valley with steep, even Grand, slopes
• Where Clementine's father dwelt, unknown to break the law
• Rafting area
• Geographical feature — topic anyone covers