"Love Telegraph pass, very challenging...if you're weak!"
That line, left on a trail review earlier this year, captures what most people in Fortuna Foothills already understand about their neighborhood's signature climb. It rewards anyone who shows up prepared and humbles everyone else. What the review doesn't mention is when to show up, and that detail changes the entire hike.
Every fall, some version of the same assumption circulates through the Foothills: October means the heat has broken, the trail is open again, time to lace up. The trail was never closed. What changes is not the calendar, it's the clock.
Why October Still Feels Like August
Yuma's average high in September runs close to 109 degrees. By October, that average drops to roughly 96, with daily highs still ranging anywhere from the mid-80s to the low-100s depending on the week. November is where the real relief shows up, with average highs falling to around 86. Overnight lows in October average around 73 degrees, roughly 23 degrees below the afternoon peak, which is why the coolest hour on Telegraph Pass isn't determined by which month it is. It's determined by how close you are to sunrise.
That gap between what the calendar promises and what the thermometer delivers is the reason experienced Foothills hikers don't wait for a specific date. They wait for a specific hour.
Two Different Mountains, Same Trailhead
Telegraph Pass sits off North Frontage Road in Fortuna Foothills, reached by taking I-8 to Foothills Boulevard, heading north, then following North Frontage Road until it dead-ends at a gravel parking area with porta-johns and wash stations on-site.
From that same trailhead, hikers choose between two fundamentally different routes.
The standard Telegraph Pass Trail runs 5.7 miles round trip with 1,417 feet of elevation gain, rated hard, and typically takes 3 to 3.5 hours. The first stretch crosses open, loose-rock terrain before reaching the base of the mountain, where a short paved section appears near the top and the grade turns steep. Reach the summit and the view opens up across Yuma and Welton.
Early in the climb, before the grade turns steep and rocky, hikers pass a set of petroglyphs estimated at roughly 600 years old. They sit close enough to the main path that even people who turn back before the summit usually see them.
The second option, the Long Telegraph Pass Loop, covers anywhere from 5.8 to 6.8 miles depending on the exact route taken, with elevation gain that one hiker logged at nearly 2,600 feet. This version continues past a cluster of radio towers and antennas, where the marked trail effectively ends and the route turns into cairns, loose rock, and sections of hand-over-hand scrambling. It is rated more difficult and, unlike the main trail, described by regular users as a route where you're unlikely to run into many other people.
Same trailhead, same dead-end parking lot, two completely different afternoons depending on which sign you follow.
What Actually Happens at 6 A.M.
The trail's regulars have already solved the October problem, just not by waiting for it to end.
One hiker described starting at 6 a.m. on a Saturday specifically to catch the coolest hours and the sunrise before the trail filled in around 7. Another, further along in the route notes, recommended the opposite end of the day: roughly 90 minutes before sunset, timed so the descent still has daylight left. Both approaches are built around the same logic. Skip the middle of the day entirely, regardless of what month it is.
Dogs are welcome on both routes but must stay leashed, a detail that matters given how many reviewers mention hiking with family, kids, or a dog trotting alongside. One trail account put the visit count at 58 times over two years, which says less about any single hiker's stamina and more about how embedded this trail is in the neighborhood's weekly rhythm. It isn't a destination people check off. It's a route people return to on a schedule that has nothing to do with tourist season.
That pattern only works because the trailhead itself makes it easy to repeat. Quick logistics for anyone heading up for the first time this season:
- Take I-8 to Foothills Boulevard and head north.
- Follow North Frontage Road until it dead-ends at the trailhead parking area.
- Expect porta-johns and wash stations on-site, but no shade until you're well into the climb.
- Decide before you park which route you're taking. The standard trail and the Long Loop split early, and the loop is considerably harder to bail out of once you've committed.
The Trail Doesn't Care What Season You Think It Is
None of this means Telegraph Pass is somehow off-limits in early fall. People hike it in July. The difference is that in July, everyone already knows to avoid midday, while in October the lighter heat creates a false sense that any hour will do. It won't, not yet. The 13-degree gap between October's average high and November's is the actual dividing line between "technically fall" and "actually comfortable," and it lands closer to Thanksgiving than to Halloween.
For now, the trail belongs to the early risers and the pre-sunset crowd, same as it did in August. The rest of the Foothills will catch up once November's averages take hold.
If Telegraph Pass is already part of how you spend your Saturday mornings, you already know the neighborhood better than most listings will ever explain. When you're ready to talk about what it's like to live near that trailhead year-round, or anywhere else in the Yuma Foothills, Osvaldo and Aracely Olivares are happy to talk it through, no rush required.
