Possible Clues:

• Holding pack animal, I'm climbing fine highlands
• What's said in church, if it's high enough
• Fellow I'm taking up, astride donkey, to the peaks
• Range portion
• Mountains of money suddenly beginning to come in -- in your dreams!
• From poles, with temperature dropping, one following series of peaks
• Block of Earth's crust lifted to form peaks of a mountain range
• Catholic service providing range
• Range of mountains
• Geological formation