Possible Clues:

• Coyote's favorite company
• "Looney Tunes" company
• Wile E. Coyote's preferred supplier
• Highest spot to reach
• Where some descents start
• Wile E. Coyote's favorite brand
• Supplier of Road Runner traps
• Cartoon company that sells Dehydrated Boulders
• Wile E. Coyote's supplier of choice
• Highest place