Trail Overview
Hole-n-Wall Canyon - Segmiller Mountain is a picturesque 4.5-mile off-road trail perfect for intermediate drivers seeking scenic canyon views and a mild, engaging climb. Climbing from the valley near Wolf Hole up the southeastern side of Segmiller Mountain, this route offers beautiful canyon overlooks that tempt drivers to stop frequently. With an elevation gain of approximately 431 feet, reaching a maximum elevation of 5,175 feet, the trail follows a portion of Clay Springs Road. Though designated as a road, this track is highly unpaved and demands a high-clearance four-wheel-drive vehicle or a rugged SxS to negotiate the varying terrain safely.
The terrain along this route is rated a 2 out of 10, featuring sections of very sharp, large rocks and small ledges that require careful wheel placement and durable, puncture-resistant tires. Drivers of wider vehicles should prepare for tight squeezes, as the trail is bordered by brush that may leave some minor desert pin-striping on vehicle paint. Historically, the area was utilized by early ranchers like Charles Segmiller, who developed the nearby springs in the late 1800s for horse and cattle ranching. This trail connects with the main Hole-n-Wall Trail, providing an excellent gateway to further explore the eastern side of the mountain or ascend over the peak.
History
In the late 1800s, farmers started running cattle and horses on the Arizona strip, where access to water was critical. Recognizing water potential on the south and east sides of the mountain south of St. George, Charles Segmiller sent his sons, Charles Jr. and Hela, to develop the local springs. They cleared the mud to access the water source, piped it into troughs, and built corrals for roundups and branding. Because of high gypsum and salt content, the water was alkaline and caused diarrhea in humans—earning it the nickname "gypy water" from local ranchers, though Native Americans called the spring "Kicha Creek." Despite its quality for humans, the water was suitable for livestock. Hela Segmiller, along with his brothers Frank and Dan, operated the ranch until 1915, catching and taming wild horses and breeding mules for profit. In the early 1950s, the Bureau of Land Management (BLM) officially designated the peak as Segmiller Mountain.
Access Description
High-clearance four-wheel-drive vehicles or SxSs with durable, puncture-resistant tires are required due to sections of sharp, large rocks. Wider vehicles may experience brush scratches along the narrower portions of the route.
