Jack Dykinga / Arizona sycamore (Platanus wrightii) roots and leaves amongst pebbles. In riparian area, Chiricahua Mountains, Coronado National Forest, Arizona, USA. November.

Jack Dykinga / Yellow paloverde (Cercidium microphyllum) flowering amongst Saguaro (Carnegiea gigantea). In foothills on north side of Santa Catalina Mountains, Coronado National Forest, Arizona, USA. May 2019.

Jack Dykinga / Waterfall with intense run off due to Hurricane Newton, with Agave. Santa Catalina Mountains, Coronado National Forest, Arizona, USA, September

Jack Dykinga / Leaves of Arizona sycamore (Platanus Wrightii) and Bigtooth maple (Acer saccharum grandidentatum) floating on water, South Fork Cave Creek, Coronado National Forest, Chiricahua Wilderness, Chiricahua...

Jack Dykinga / Yucca (Yucca schottii) plants growing amongst Bigtooth maple trees (Acer saccharum grandidentatum) in autumn, Huachuca Mountains, Coronado National Forest, Arizona, USA

Jack Dykinga / Rainbow at sunset over desert hillside with Saguaro cacti, Table Mountain in the distance, Pusch Ridge Wilderness, Coronado National Forest, Santa Catalina Mountains, Arizona, USA

Jack Dykinga / Yucca (Yucca schottii) plants growing amongst Bigtooth maple trees (Acer grandidentatum) in autumn, Huachuca Mountains, Coronado National Forest, Arizona, USA

Jack Dykinga / Velet-pod mimosa (Mimosa dysocarpa) flowering amongst Blue oak trees (Quercus oblongifolia) Atascosa Mountains, Coronado National Forest, Arizona, USA

Jack Dykinga / Velet-pod mimosa (Mimosa dysocarpa) flowering amongst Blue oak trees (Quercus oblongifolia) Atascosa Mountains, Coronado National Forest, Arizona, USA

Jack Dykinga / Summer poppies (Kallstroemia grandifolia) and oaks (Quercus sp) after record summer rains in the Coronado National Forest, Arizona

Jack Dykinga / Water shamrocks / Water clover (Marsilea mucronata) floating on the surface of a canyon pool. Peck Canyon, Atascosa Mountains, Coronado National Forest, Arizona

Jack Dykinga / Velvet-pod mimosa (Mimosa dysocarpa) flanked by Blue oaks (Quercus oblongifolia) in the grassy foothills of the Atascosa Mountains, Coronado National Forest, Arizona

Jack Dykinga / Yucca {Yucca schottii} and Bigtooth maples {Acer grandidentatum} in autumn colours, Huachuca mountains, Coronado National Forest, Arizona, USA

Konrad Wothe / Broad-billed Hummingbird (Cynanthus latirostris) male flying, Madeira Canyon, Coronado National Forest, Arizona

Jack Dykinga / Detail of the trunk of a Manzanita (Arctostaphylos viscida) with its unique red bark against the dead wood grained patterns. Rincon Mountains, Coronado National Forrest, Arizona.

Jack Dykinga / Details of wood grain structure of Arizona white oaks (Quercus arizonica). Stress from lack of water and pest infection can cause elaborate swirls and intricate patterns. Conelo Hills, near Sonoita Co...

Jack Dykinga / Lightning started fire on steep craggy terrain, with US Forest Service Fire suppression Wildland Firefighters using helicopters to 'bomb' the hot spots to control the spread. Pusch Ridge, Sant...

Jack Dykinga / Details of wood grain structure of Arizona white oaks (Quercus arizonica) Stress from lack of water and pest infection can cause elaborate swirls and intricate patterns. Dragoon Mountains, Coronado Na...

Jack Dykinga / Lightning started fire in steep craggy terrain, Pusch Ridge, Santa Catalina Mountains, Coronado National Forest, Arizona, USA. 6th June 2020.

Jack Dykinga / Smoke from lightning started fire in steep craggy terrain, Pusch Ridge, Santa Catalina Mountains, Coronado National Forest, Arizona, USA. 6th June 2020.

Jack Dykinga / Lightning caused fire on Mount Lemmon, Forest Service Fire suppression Wildland Firefighters use helicopters to 'bomb' the hot spots to control the spread. Mount Lemmon's north palisades,...

Jack Dykinga / Lightning started fire on steep craggy terrain, with US Forest Service Fire suppression Wildland Firefighters using helicopters to 'bomb' the hot spots to control the spread. Pusch Ridge, Sant...

Jack Dykinga / Lightning started fire on steep craggy terrain, with US Forest Service Fire suppression Wildland Firefighters using helicopters to 'bomb' the hot spots to control the spread. Pusch Ridge, Sant...

Jack Dykinga / Lightning started fire on steep craggy terrain, with US Forest Service Fire suppression Wildland Firefighters using helicopters to 'bomb' the hot spots to control the spread. Pusch Ridge, Sant...

Jack Dykinga / Lightning caused fire on Mount Lemmon, Forest Service Fire suppression Wildland Firefighters use helicopters to 'bomb' the hot spots to control the spread. Mount Lemmon's north palisades,...

Jack Dykinga / Lightning caused wildfire on Mount Lemmon, Coronado National Forest, Arizona, USA, 11th June 2020.

Jack Dykinga / Lightning caused wildfire on Mount Lemmon, Coronado National Forest, Arizona, USA, 11th June 2020.

Jack Dykinga / Lightning caused wildfire on Mount Lemmon, Coronado National Forest, Arizona, USA, 11th June 2020.

Jack Dykinga / Sycamore (Acer sp) and Cottonwood (Populus sp) trees lining dry creek bed, rhyolite cliffs above. Cave Creek Canyon, Chiricahua Mountains, Coronado National Forest, Arizona, USA. November 2019.

Jack Dykinga / Yucca (Yucca schottii) plant with Bigtooth maple (Acer grandidentatum) autumn foliage in background. Cave Creek Canyon, Chiricahua Mountains, Coronado National Forest, Arizona, USA. November.

Jack Dykinga / Yucca (Yucca schottii) with Sycamore (Acer sp) and Ash (Fraxinus sp) in autumn foliage in background. Cave Creek Canyon, Chiricahua Mountains, Coronado National Forest, Arizona, USA. November 2019.

Jack Dykinga / Soaptree yucca (Yucca elata) flowering at night, under starry sky. Cochise Stronghold, Dragoon Mountains, Coronado National Forest, Arizona, USA. June.

Jack Dykinga / Yellow paloverde (Cercidium microphyllum) flowering amongst Saguaro (Carnegiea gigantea). In foothills on north side of Santa Catalina Mountains, Coronado National Forest, Arizona, USA. May 2019.

Jack Dykinga / Saguaro cactus (Carnegiea gigantea)flowers, Santa Catalina mountain foothills. Sonoran Desert. Coronado National Forest, Arizona, USA, May.

Jack Dykinga / Boulders near Windy Point, Santa Catalina Mountains, Coronado National Forest, with Catalina Mountain ridges and the Tucson Mountains, Arizona, USA. September 2016.

Jack Dykinga / Geology Vista, with granite boulders against the Tucson's city lights under the Milky Way, Santa Catalina Mountains, Coronado National Forest, Arizona, USA, September.

Jack Dykinga / Rainbow over Geology Vista, with Granite spires form a jagged edge to mountain top ridges. Santa Catalina Mountains, Coronado National Forest, Arizona, USA, September.

Jack Dykinga / Santa Catalina Mountains, Coronado National Forest near Geology Vista, with Granite spires form a jagged edge to mountain top ridges. Arizona.

Jack Dykinga / American bobcat (Lynx rufus baileyi) yawning and resting. Santa Catalina Mountains, Coronado National Forest, Tucson, Arizona, USA, July.

Jack Dykinga / American bobcat (Lynx rufus baileyi) resting on patio, Santa Catalina Mountains, Coronado National Forest, Tucson, Arizona, USA, July.

Jack Dykinga / American bobcat (Lynx rufus baileyi) resting on shade 'sails' over patio in garden. Santa Catalina Mountains, Coronado National Forest, Tucson, Arizona, USA, July.

Jack Dykinga / Canyon pool with Water Shamrocks (Marsilea mucronata) floating. Coronado National Forest, Peck Canyon, Atascosa Mountains, Arizona, November.

Kirkendall-Spring / Hiker at Hells Gate in the Tumacacori Mountains of Coronado National Forest. Arizona, USA, March 2009

Kirkendall-Spring / Hiker at Hells Gate in the Tumacacori Mountains of Coronado National Forest. Arizona, USA, March 2009

Kirkendall-Spring / Hiker at Hells Gate in the Tumacacori Mountains of Coronado National Forest. Arizona, USA, March 2009, model released

Kirkendall-Spring / Hiker walking in Sycamore Canyon part of Pajarita Wilderness of Coronado National Forest. Arizona, USA, March 2009

Kirkendall-Spring / Two hikers walking down the creek running through Sycamore Canyon part of Coronado National Forest. Arizona, USA, March 2009, model released

Kirkendall-Spring / Hiker in Romero Canyon Pusch Ridge Wilderness of Coronado National Forest. Arizona, USA, March 2009