Mazatzal

The Mazatzal Inventoried Roadless Area covers 16,942 acres in the southern Mazatzal Mountains within Arizona's Tonto National Forest, spanning Gila and Maricopa Counties in the Cave Creek Ranger District. The terrain is mountainous and dissected by deep drainages: Bull Tank Mesa, Trail Ridge, Walnut Canyon, Buckhead Canyon, Hells Neck Ridge, and Hells Hole are among the named landforms distributed across the area. Sycamore Creek rises within the area from high-elevation springs and seeps, collecting flow through South Fork Sheep Creek, Sheep Creek, and Pine Creek — a watershed of major hydrological significance that extends from montane pine-oak forest to desert canyon floor. Multiple stock tanks and springs — Plowbeam Tank, Clover Spring, Pats Shoe Spring, and others — hold water through dry periods on the upper ridges.

The area spans an elevational gradient that compresses the Sonoran Desert to montane pine-oak forest into a single mountain range. At the lowest elevations, Saguaro Cactus and Palo Verde Desert communities carry saguaro (Carnegiea gigantea), ocotillo (Fouquieria splendens), velvet mesquite (Neltuma velutina), and fishhook barrel cactus (Ferocactus wislizeni, Vulnerable). Moving upslope through Arizona Plateau Chaparral and Sky Island Pinyon-Juniper Woodland, alligator juniper (Juniperus deppeana), golden-flower agave (Agave chrysantha), and Mexican manzanita (Arctostaphylos pungens) give way to Sky Island Pine-Oak Forest carrying Emory oak (Quercus emoryi), Arizona white oak (Quercus arizonica), and Gambel oak (Quercus gambelii). At the summits, Southern Rockies Ponderosa Pine Woodland supports southwestern ponderosa pine (Pinus brachyptera), Douglas-fir (Pseudotsuga menziesii), and smooth Arizona cypress (Hesperocyparis glabra) — a species characteristic of central Arizona's sky island ranges. The Sycamore Creek drainages hold Warm Desert Mountain Streamside Woodland communities, with Wright's sycamore (Platanus wrightii), Fremont cottonwood (Populus fremontii), and Arizona alder (Alnus oblongifolia) forming a gallery forest at the canyon floors.

The elevation gradient supports a corresponding range of wildlife. In the lower desert scrub, Gila Monster (Heloderma suspectum, Near Threatened) moves through rocky terrain, while Phainopepla (Phainopepla nitens) forages on desert mistletoe in the mesquite groves. Acorn Woodpecker (Melanerpes formicivorus) and Bridled Titmouse (Baeolophus wollweberi) occupy the oak woodland communities. Olive-sided Flycatcher (Contopus cooperi, Near Threatened) arrives in the ponderosa pine zone in summer. Common Black Hawk (Buteogallus anthracinus) nests in tall sycamores above Sycamore Creek pools, where Sonoran Mud Turtle (Kinosternon sonoriense, Vulnerable) and Arizona Toad (Anaxyrus microscaphus, Vulnerable) are also documented. American Black Bear (Ursus americanus) and White-nosed Coati (Nasua narica) range across multiple habitat types throughout the area. Portions of this area fall within the potential range of several federally listed species; see the Conservation section for details.

Ten trails access the Mazatzal roadless area from Doll Baby Trailhead and Sheep Bridge Trailhead. The longest routes — Davenport Trail (89, 13.9 miles) and Dutchman Grave Trail (22, 10.5 miles) — traverse the full depth of the area's interior, crossing the Sycamore Creek drainage and ascending through chaparral and pinyon-juniper into pine-oak forest. Along routes that descend into Walnut Canyon, Buckhead Canyon, or the Hells Hole drainage, the landscape shifts from open desert scrub on sun-exposed slopes to the shaded interior of a Wright's sycamore gallery forest at streamside — a compression of several biotic communities into a single canyon descent.

The Mazatzal Mountains of central Arizona were the homeland of the Yavapé (Yavapai) and the Dilzhę́'é (Tonto Apache), two culturally distinct peoples who had inhabited this region long before European contact. By 1542, their homelands had been formally claimed for Spain by the conquistador Francisco Vázquez de Coronado, though Spanish expeditions largely avoided the area for the following two centuries, finding little reward and meeting formidable resistance. [4]

Sustained disruption came in 1863, when gold was discovered in the Bradshaw Mountains at Turkey Creek and Lynx Lake near Prescott — a strike directly within Yavapai and Apache territory. [4] The rush that followed brought miners, settlers, and military forces into central Arizona, and conflict escalated rapidly across the Mazatzal Mountains and surrounding Tonto Basin. In 1865, the U.S. Army established Fort McDowell as a base of operations against the peoples ranging the Mazatzal Mountains and the Tonto Basin. [1] Military campaigns pushed into the mountains and surrounding drainages throughout the late 1860s and early 1870s. In the spring of 1873, Dilzhę́'é war chiefs including Chalipan (Grey Hat) and Hosteen Nez (Tall Old Man) surrendered to General George Crook at the Camp Verde Indian Reservation. [4]

The reservation period proved short. Under pressure from federal contractors and commercial interests who sought to open the Camp Verde lands to American settlement, the government ordered the removal of the Yavapai and Tonto Apache from their reservation. On February 27, 1875, 1,476 people — elderly, pregnant, and infirm among them — were force marched 180 miles to the San Carlos Apache Reservation in southeastern Arizona. More than 100 died en route from exposure, trauma, and drowning. [4] The march cleared the Mazatzal region and surrounding country for ranching, mining, and settlement.

Mining in the Mazatzal Mountains developed through the late nineteenth and early twentieth centuries. The Ord Mine, a property of twenty patented claims on the eastern slope of the range, was among the documented mineral operations in the area. [3] Near the town of Sunflower, the Sunflower Mine began operation in 1911, extracting mercury, copper, gold, and silver from the range's volcanic geology. From 1913 to 1965, the Sunflower Mine produced approximately 3,973 flasks — nearly 304,000 pounds — of mercury from cinnabar ore processed on site. [5] The extensive ruins of the mercury processing facility remain in the Mazatzal Mountains today.

Federal protection came in 1905. On October 3, President Theodore Roosevelt issued Proclamation 598 under the authority of the Act of Congress of March 3, 1891, establishing the Tonto Forest Reserve from unreserved and unappropriated public lands in the Territory of Arizona. [2] The Tonto Forest Reserve was later expanded and redesignated as the Tonto National Forest. The Mazatzal Inventoried Roadless Area, a 16,942-acre tract within the Cave Creek Ranger District, lies within this protected landscape in Gila and Maricopa Counties and is managed today under the 2001 Roadless Area Conservation Rule.

Vital Resources Protected

Cold-Water Stream Integrity for Native Fish

The Sycamore Creek headwaters and Sheep Creek tributaries originate within the Mazatzal roadless area at high-elevation springs and seeps fed by the montane terrain. These streams support multiple federally listed native fish, including Loach Minnow (Tiaroga cobitis, Endangered), Spikedace (Meda fulgida, Endangered), and Gila Chub (Gila intermedia, Endangered) — species that require cold, clear water with intact gravel substrates and riparian shade. The roadless condition of the upper watershed maintains intact soil and vegetation cover on the slopes above these streams, preventing the sedimentation that degrades the substrate conditions on which these species depend. Razorback Sucker (Xyrauchen texanus, Endangered) and Woundfin (Plagopterus argentissimus, Endangered) are associated with downstream habitats connected to these headwaters, making water quality originating in the roadless area critical to their persistence.

Sky Island Forest Continuity for Interior-Dependent Species

The Sky Island Pine-Oak Forest, Southern Rockies Ponderosa Pine Woodland, and Sky Island High Mountain Conifer-Oak Forest of the Mazatzal Mountains form isolated blocks of montane habitat within a matrix of desert and chaparral. The Mexican Spotted Owl (Strix occidentalis lucida, Threatened) depends on large, contiguous blocks of mature, structurally complex forest in exactly this configuration — isolated sky island patches where interior forest conditions are maintained away from roads. Critical habitat for the Mexican Spotted Owl has been designated within the Tonto National Forest, and the roadless condition of the Mazatzal area preserves the interior character of this forest block from the fragmentation and edge effects that roads generate. The Yellow-billed Cuckoo (Coccyzus americanus, Threatened) and Southwestern Willow Flycatcher (Empidonax traillii extimus, Endangered) also have critical habitat designations within this area, occupying the Warm Desert Mountain Streamside Woodland communities along Sycamore Creek and its tributaries.

Riparian Corridor Integrity

The Sycamore Creek drainage — from its headwater springs through Pine Creek, Sheep Creek, and South Fork Sheep Creek — forms a continuous riparian system supporting multiple ESA-listed and IUCN-assessed species. The Warm Desert Mountain Streamside Woodland and Warm Desert Streamside Mesquite Grove communities along these drainages support the Narrow-headed Gartersnake (Thamnophis rufipunctatus, Threatened), Northern Mexican Gartersnake (Thamnophis eques megalops, Threatened), Chiricahua Leopard Frog (Rana chiricahuensis, Threatened), and Arizona Toad (Anaxyrus microscaphus, Vulnerable). Common Black Hawk (Buteogallus anthracinus) nests in the tall riparian trees above these stream pools. The roadless condition maintains riparian vegetation structure and channel hydrology free from the alterations road construction introduces.

Potential Effects of Road Construction

Sedimentation and Native Fish Habitat Degradation

Road construction on the upper slopes draining to Sycamore Creek, Sheep Creek, and Pine Creek would introduce cut slopes and compacted fill that accelerate runoff and deliver fine sediment into stream channels. Sediment deposited in headwater gravels directly degrades the spawning substrate and thermal conditions required by Loach Minnow, Spikedace, and Gila Chub — species with ESA critical habitat designations in these drainages and already reduced to a fraction of their historic range. These effects persist with every significant rainfall event for years after initial construction ends.

Forest Fragmentation and Mexican Spotted Owl Habitat Disruption

Road corridors cut through the Sky Island Pine-Oak Forest would create linear openings that expose the interior to edge effects — increased light penetration, altered microclimate, and noise — reducing effective habitat area for the Mexican Spotted Owl. The Mazatzal sky island forest block is already isolated by elevation; road fragmentation would reduce its interior extent and increase edge-to-interior ratios in a habitat patch where interior conditions are already constrained by the mountain's geography.

Riparian Hydrology and Gartersnake Corridor Disruption

Road crossings on Sycamore Creek, Sheep Creek, and Pine Creek would install culverts and bridges that alter stream hydraulics, trap sediment, and introduce barriers to aquatic movement. The Narrow-headed and Northern Mexican Gartersnakes — both Threatened — depend on intact stream corridors for foraging and dispersal; road crossings fragment these corridors and expose movement between stream segments to vehicle mortality. Dewatering of springs and seeps through altered subsurface hydrology at road installations would degrade the persistent water sources on which the Chiricahua Leopard Frog and Arizona Toad depend through the dry season.

Hiking

Ten marked trails totaling approximately 57 miles traverse the Mazatzal roadless area, all on native-material surface and open to hikers only. The two longest routes — Davenport Trail (89, 13.9 miles) and Dutchman Grave Trail (22, 10.5 miles) — are full-day or multi-day routes that penetrate the area's interior, crossing the Sycamore Creek drainage and ascending through multiple biotic zones from desert scrub to ponderosa pine forest. Copper Camp Trail (87, 7.4 miles) and Saddle Ridge Trail (14, 5.0 miles) offer intermediate-length access to the interior terrain, while Powerline Trail (540, 4.3 miles) and Willow Springs Trail (223, 4.3 miles) provide access from the upper end of the area. Verde River Trail (11, 2.3 miles), Fig Spring Trail (92, 3.5 miles), Sears Trail (90, 1.3 miles), and Walnut Trail (251, 0.8 miles) offer shorter routes into canyon systems and water features. Both Doll Baby Trailhead and Sheep Bridge Trailhead serve the network. No maintained campgrounds are located within the roadless area; dispersed camping is available on adjacent Tonto National Forest lands.

Birding and Wildlife Observation

Seven eBird hotspots within 24 kilometers document the area's exceptional avian diversity. Horseshoe Lake Recreation Area is the most active nearby hotspot with 181 species across 85 checklists; Tonto Natural Bridge State Park records 170 species across 427 checklists — the highest checklist count in the region and a consistent indicator of the resident and migratory species that use the contiguous Sycamore Creek drainages. Horseshoe Reservoir (166 species, 102 checklists) and the Slate Creek Divide locations (148 species, 285 checklists) reflect the broader diversity of the Mazatzal mountain zone. Within the roadless area itself, the elevational gradient produces a matching range of avifauna: Gambel's Quail (Callipepla gambelii) in the lower desert scrub, Bridled Titmouse (Baeolophus wollweberi) and Acorn Woodpecker (Melanerpes formicivorus) in the oak woodland, and Olive-sided Flycatcher (Contopus cooperi) and Painted Redstart (Myioborus pictus) in the high pine-oak zone. Scott's Oriole (Icterus parisorum), Phainopepla (Phainopepla nitens), Canyon Wren (Catherpes mexicanus), and Common Black Hawk (Buteogallus anthracinus) represent other characteristic species of this sky island terrain.

Hunting

The Mazatzal roadless area supports hunting for Mule Deer (Odocoileus hemionus), White-tailed Deer (Odocoileus virginianus), Wapiti (Cervus canadensis, elk), American Black Bear (Ursus americanus), Wild Turkey (Meleagris gallopavo), Gambel's Quail, and Collared Peccary (javelina, Pecari tajacu) under Arizona Game and Fish Department regulations. The area's interior — accessible only on foot via the Davenport, Dutchman Grave, and Copper Camp Trails — provides conditions unavailable on road-accessed terrain: low disturbance, undisturbed wildlife movement through intact habitats, and the range of biotic zones from desert to mountain that Arizona's big-game species use seasonally.

Fishing

Sycamore Creek and its tributaries hold water through much of the year and support native fish including Roundtail Chub (Gila robusta, Vulnerable) and Rainbow Trout (Oncorhynchus mykiss). ESA-listed native fish species are documented in these drainages; current fishing regulations should be confirmed with the Arizona Game and Fish Department before each trip, as specific reaches may have restrictions in place to protect listed species.

The Roadless Condition

The recreation value of the Mazatzal area depends on its roadless character. The Davenport Trail and Dutchman Grave Trail function as backcountry routes because no road reaches the terrain they traverse — hikers and hunters crossing Sycamore Creek and ascending to the high pine-oak zone travel through continuous, uninterrupted habitat rather than road-cut clearings and vehicle corridors. The bird records from Tonto Natural Bridge State Park (170 species, 427 checklists) and Horseshoe Lake (181 species) reflect the diversity that the intact Sycamore Creek riparian corridor and adjacent mountain habitats support — habitats that road corridors would fragment. Native fish access to undisturbed stream habitat depends on headwater drainages remaining free of the sedimentation that road construction on upper slopes reliably delivers.