Outfitters in Quito, about 75km south of Cotopaxi, offer all manner of Cotopaxi climbs, often combined with mountain biking, horse riding and hiking or camping in the park.

BBC: How to climb a South American volcano

Dobbs acknowledges that the "significance of the Crazy Horse Memorial and reaction to the mountain carving varies" among Native Americans.

CNN: A memorial for Crazy Horse 64 years in the making ... so far

Set within 2, 500 acres of secluded forest and game reserve with seven trout streams and four lakes, this resort offers much for the adventurer, including over 70 kilometers of hiking trails as well as mountain bike riding, horse riding and kayaking.

FORBES: Magazine Article

Find where to pick your own blueberries and blackberries in Texas or -- for those with some horse riding experience -- join a frontier cattle drive through the mountain countryside of southwestern Alberta, Canada.

BBC: Vacationing down on the farm

Every few kilometres the landscape became more rugged, more dramatic and soon I was caught up in the beauty, my horse carrying us almost effortlessly along the narrow tracks and through clear mountain rivers.

BBC: The way of the shepherd: Horse trekking through Kyrgyzstan

The roads were barely wide enough for a horse cart, and often I looked over the face of a crumbling mountain, forcing myself to think of something other than death.

NEWYORKER: The Idiot President

For example, even though automobiles represent a newer mode of transport than horses, a horse would certainly prove to be a more effective means for reaching a high mountain lake without roadways.

FORBES: Federal Judges Consider Important Issues That Could Shape the Future of Predictive Coding Technology

And yes, they're concerned about ethanol or Yucca Mountain or the Iraq War, but they are also concerned about picking a horse that can win the presidency for their party.

NPR: Presidential Race Comes Early to Primary States