University of Arizona

Sense of Place

Geos. 195D

Mt. Lemmon

Map of Catalina Highway

Mt. Lemmon, all the way to the top, is one of the great sites and natural history trips of Tucson.

User Fee to Drive the Highway

A user fee is charged to drive the Mt. Lemmon Highway and stop to hike and/or picnic or do whatever to enjoy the mountain. There are various pros and cons to user fees. Some recent voices on this subject:

Piñon Pine Nut Muffins

1 cup piñon pine nuts, ground
½ cup wheat flour
½ cup water
3 tablespoons honey
2 teaspoons baking powder
½ teaspoon salt
  Combine dry ingredients. Add water and
honey and mix well. Pour into greased
muffin tins. Bake for ½ hour @ 350º F.
Makes 24 bite-sized muffins (or ~6 big ones).
From: Niethammer, Carolyn. 1974.
American Indian Cooking: Recipes From the Southwest.
University of Nebraska Press.

Global Change and Stacked Ecosystems of the Sky Islands

Arizona is rightly known as the "Grand Canyon State," but Baja Arizona could be just as reasonably dubbed the "Sky Island State." The Catalina Highway allows a close-up look at Sky Island biogreography, namely, stacked ecosystems. With changing elevation, ecosystems themselves change, from Sonoran Desert down low, to Madrean mixed woodland in the middle, and to Rocky Mountain subalpine forest on top.

Fire on the Mountain

A large fire called the Bullock burned parts of Mt. Lemmon in 2002, and other parts were burned in 2003 in the Aspen fire. Here's an image of the Aspen burn area up close:

Aspen burn
Photo credit — Jayme Kelter

Snow on the Mountain

It snowed the day of the April 2007 SOP trip. Unusual, but not unheard of, even for Southern Arizona. Here's a shot of the remnant snow at Palisades Ranger Station, about 8,000 ft. elevation:

snow at Palisades
Photo credit — Paul Sheppard

Team Photo, 2009

2009 team photo on Catalina Mt. trip
Photo credit — Paul Sheppard

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Laboratory of Tree-Ring Research, The University of Arizona
Tucson, Arizona 85721 USA
Main Office: (520) 621-1608, Fax: (520) 621-8229
Comments to Paul Sheppard: sheppard @ ltrr.arizona.edu