Iron Mountain #1

Overview

Iron Mountain #1, also known as “Big Iron”, is often considered one of the most remote and strenuous day hikes in the San Gabriels. This exposed and relentless, extremely rough use-trail climbs 6,000 feet to reach the summit. Once at the top, you will feel you are at the center of the San Gabriels with breathtaking views in all directions. Red tape and warnings: Self-issued day permit required which can be found at the trailhead Adventure Pass required for parking Bring trekking poles for the steep sections Bring LOTS of water. Even if you are doing this trail in the cooler months, bring a good amount of water as there is none on the trail. I had 4-5 liters of fluids and it barely got me through the trip. When you park at the lot, display your Adventure Pass and then walk past the gate half a mile down the road to the trailhead. This parking lot is often crowded as the trail to the popular Bridge to Nowhere hike is also down this road, so try to get here early — especially on weekends. The road will lead you to a bathroom on your right and behind that bathroom is the trailhead. However, before going to the trailhead, first walk toward the signs several feet down the road. This is where you will pick up your self-issued day permit. The permits are located in the brown box. Fill out the form and deposit it in the box, be sure to keep a copy with you. Now that you have your permit, walk to the trailhead behind the bathroom area. The Heaton Flats Trail is where your journey to Iron Mountain begins. You will climb gentle switchbacks along the hillside for about 1.2 miles to reach a saddle. Along the way, you may have to cross the stream at several spots. The water level will of course depend on the time of year. When I hiked this in late November, the stream bed was completely dry, but if we’re in the wet season you can expect a bit more water up here. Shady section of trail along the stream. Enjoy the shade while you can. Dry stream crossing Once you have reached the saddle, look back for some great views before yo

Trail Stats

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