You could imagine the eye rolls around Tucson when it emerged June 7 that Arizona Game and Fish may end up killing some mountain lions in order to repopulate the Catalinas with bighorn sheep.
There's a population explosion of tent-building caterpillars in trees of the higher mountains of Southern Arizona, like this one in the Catalinas.
A "population explosion" of tent caterpillars - which spin slightly creepy-looking shelters on tree limbs - has left some mountain areas looking "almost like a science-fiction movie," scientists say.
Hard to believe that 10 years has passed since the Aspen Fire tore through Summerhaven and the Santa Catalina Mountains. The fire burned 84,750 acres and destroyed 335 structures in and around Summerhaven.
Lose the sunglasses if you find yourself face to face with a mountain lion in the wild.
Mountain lions, like this one in Sabino Canyon, will generally try to avoid a confrontation.
A mountain lion stays close to its deer kill in Sabino Canyon. Lions who prey on bighorn sheep will be killed, state wildlife officials say.
A pair of bighorn sheep pause on a ridge overlooking Oro Valley. A herd of bighorn sheep, which died out in the late 1990s, will be brought back to the Pusch Ridge area in November.
An already "robust" population of mountain lions in the Catalina Mountains appears to be increasing - and that could pose a threat to a planned reintroduction of bighorn sheep in the range this fall.
A paintbrush mountain wildflower could be seen on the Green Mountain Trail in the Santa Catalina Mountains on May 26. The high country should remain colorful into September.
Columbine wildflowers adorn the Green Mountain Trail in the Santa Catalina Mountains north of Tucson.
Bracken ferns along the Green Mountain Trail in the Santa Catalina Mountains.
Here's one big benefit of living in a city with deserts out the front door and 9,000-foot mountains nearby: a wildflower season that goes on for about seven months.
The Forest Service has temporarily closed a portion of a popular trail in the Catalina Mountains for public safety due to a mountain lion's behavior.
Bighorn sheep, like these two on a ridge overlooking Oro Valley, will once again take their place in the Catalina Mountains.
Bighorn sheep - a species that was practically the symbol of the Catalina Mountains before the herd there died out in the 1990s - will soon roam the range again.
An Arizona madrone tree along the Bug Spring Trail in the Catalinas, from the book "Mountain Trees of Southern Arizona" by Tucsonan Frank Rose. The tree can live for 200 to 250 years.
Many of us head for mountain forests as summer heat comes on - and a new book by a Tucson author could enrich your experience in the cool, green woods.
Tucsonans John and Kathy Mulligan relax with their dogs, Max, left, and Wiley, in the Cañada del Oro Wash where it passes through Catalina State Park. The couple were having lunch Wednesday before taking a hike.
This piece of pristine desert was slated for expansive residential development in the 1970s, but a citizens coalition saved it.