How to Hike the Forbush Flat

The Forbush Flat hike is one of the most rewarding yet underappreciated trails in the western United States, offering a unique blend of alpine meadows, ancient granite formations, and panoramic views that rival more famous destinations—without the crowds. Located in the remote eastern slopes of the Sierra Nevada range, Forbush Flat sits at an elevation of approximately 9,200 feet and serves as a gateway to lesser-known backcountry routes, including the trail to Mount Forbush and the hidden alpine lakes of the Owens Valley watershed. Despite its natural beauty and relative accessibility, many hikers overlook this destination due to limited online information and sparse trail signage. This comprehensive guide provides everything you need to know to safely, responsibly, and successfully hike the Forbush Flat, whether you’re a seasoned backpacker or a first-time trail explorer seeking solitude and serenity.

Understanding how to hike the Forbush Flat isn’t just about following a trail—it’s about preparing for variable weather, navigating sparse landmarks, respecting fragile ecosystems, and embracing the quiet grandeur of high-altitude wilderness. This tutorial is designed to transform confusion into confidence, equipping you with practical knowledge, expert insights, and real-world examples to ensure your journey is as enriching as it is safe. By the end of this guide, you’ll know exactly where to start, what gear to pack, how to read the terrain, and how to leave no trace while experiencing one of the Sierra’s most pristine landscapes.

Step-by-Step Guide

Step 1: Research and Plan Your Route

Before setting foot on the trail, thorough route planning is non-negotiable. The Forbush Flat trail does not appear on most mainstream mapping apps with precision, and trailheads are not well-marked. Begin by consulting the USGS topographic map for the Mount Forbush quadrangle (1:24,000 scale), which clearly delineates the trail’s origin near the eastern fork of the Owens River and its path through the flat’s grassy basin. The most commonly used trailhead is located at the end of Forbush Flat Road (County Road 104), approximately 12 miles northeast of the town of Bishop, California.

Use GPS coordinates to verify your starting point: 37.3567° N, 118.6612° W. Input these into your offline map app (recommended: Gaia GPS or CalTopo) and download the area for offline use. Satellite imagery shows a clear, wide dirt road that ends at a small parking area with space for 6–8 vehicles. There are no restrooms, water sources, or signage here—so prepare accordingly.

From this trailhead, the route to Forbush Flat is approximately 2.3 miles one-way with an elevation gain of 850 feet. The trail is not blazed, but a faint but consistent path emerges after the first 0.5 miles, following the natural contour of the slope. Avoid the temptation to cut switchbacks—this damages fragile alpine vegetation and increases erosion.

Step 2: Choose the Optimal Season and Time

The best time to hike Forbush Flat is from mid-July through early October. Snowpack lingers until late June at this elevation, and early-season trails can be muddy, slippery, or impassable. Late September offers crisp air, golden aspen groves, and fewer hikers, making it the ideal window for solitude and photography.

Start your hike before sunrise if possible. Morning light illuminates the granite outcrops in warm tones, and afternoon thunderstorms are common in the Sierra Nevada during summer months. By midday, clouds often build over the peaks, increasing the risk of lightning exposure on the open flat. Aim to reach the summit ridge by noon and begin your descent by 2 p.m. to avoid hazardous conditions.

Step 3: Prepare Your Gear

Even though the hike is considered moderate, the altitude and exposure demand serious preparation. Here is a detailed gear checklist:

• Footwear: Sturdy, broken-in hiking boots with ankle support. The trail includes loose scree, uneven granite slabs, and occasional stream crossings.
• Navigation: Offline GPS app, physical topographic map, and compass. Cell service is nonexistent beyond the first mile.
• Layers: Base layer (merino wool), insulating mid-layer (fleece or down), and waterproof shell. Temperatures can drop below 40°F even in July at dusk.
• Hydration: Minimum 3 liters of water per person. No reliable water sources exist on the trail. Carry a water filter or purification tablets as a backup for the small seep near the flat’s western edge.
• Food: High-calorie snacks (nuts, jerky, energy bars) and one full meal. Plan for longer than expected due to slow pacing at altitude.
• First Aid: Include blister care, antiseptic wipes, antihistamines, and personal medications. The nearest medical facility is 35 miles away in Bishop.
• Emergency: Whistle, headlamp with extra batteries, emergency blanket, and fully charged power bank. A personal locator beacon (PLB) is highly recommended for remote areas like this.

Step 4: Begin Your Hike

Start walking on the wide, graded dirt road that begins at the parking area. After 0.2 miles, you’ll pass a weathered wooden post with a faded trail marker. This is your official entry point. The road gradually narrows into a single-track trail, marked by faint boot prints and crushed granite. Watch for cairns—rock piles placed by previous hikers—especially around 1.1 miles where the trail veers slightly right toward a small drainage.

At the 1.5-mile mark, you’ll enter a forested zone of limber pine and aspen. The trail becomes more defined here, with clear tread and minimal brush. This section is shaded and cooler, offering a welcome break from sun exposure. Take note of the large, flat granite outcrop on your left—this is the landmark for the final push to the flat.

From here, the trail ascends gently over a series of rolling knolls. The final 0.5 miles are the most exposed. You’ll emerge onto Forbush Flat itself—a vast, treeless expanse of wildflowers, sagebrush, and smooth granite bedrock. The view opens dramatically: Mount Forbush rises to the north, the Bishop Creek drainage stretches to the east, and the White Mountains form a distant horizon to the west.

Step 5: Explore the Flat and Summit Option

Forbush Flat is not just a destination—it’s a landscape to inhabit. Spend time walking its perimeter. Look for ancient petroglyphs on the southern boulders (a cultural site protected under federal law—do not touch or climb on them). The flat’s center is ideal for a quiet lunch, with boulders serving as natural seating.

If you’re physically prepared and weather permits, consider ascending Mount Forbush (11,845 ft). The climb adds 1.7 miles and 2,600 feet of elevation gain, with Class 3 scrambling near the summit. Only attempt this if you have prior experience with exposed rock terrain and are carrying a helmet. The summit offers one of the most unobstructed 360-degree views in the Eastern Sierra.

Step 6: Descend Safely and Return

When ready to leave, retrace your steps. Do not attempt shortcuts. Even though the descent appears easier, loose rock and fatigue increase the risk of slips. Use trekking poles for stability. As you re-enter the forested section, listen for the sound of running water—it indicates the location of the trailhead road.

Upon returning to your vehicle, do not rush. Take a moment to hydrate, check for ticks (common in the lower meadows), and inspect your gear for damage. Record your experience in a journal or app to help future hikers and track your own progress.

Best Practices

Leave No Trace Principles

The Forbush Flat region is part of the Inyo National Forest and is protected under strict wilderness guidelines. Adhere to all seven Leave No Trace principles:

• Plan Ahead and Prepare: Know the regulations, weather, and terrain before you go.
• Travel and Camp on Durable Surfaces: Stick to established paths. Avoid trampling wildflowers or moss.
• Dispose of Waste Properly: Pack out all trash—including food scraps and toilet paper. Use a portable toilet or dig a cathole 6–8 inches deep, at least 200 feet from water sources.
• Leave What You Find: Do not collect rocks, plants, or artifacts. Even small souvenirs disrupt ecological balance.
• Minimize Campfire Impacts: Fires are prohibited above 9,000 feet. Use a camp stove for cooking.
• Respect Wildlife: Observe animals from a distance. Never feed them. Store food in bear-resistant containers—even though grizzlies are rare here, black bears are active.
• Be Considerate of Other Visitors: Keep noise low. Yield to uphill hikers. Share the trail with equestrians and mountain bikers where permitted.

Altitude Awareness

At over 9,000 feet, altitude sickness is a real risk. Symptoms include headache, nausea, dizziness, and shortness of breath. To mitigate this:

• Arrive in Bishop a day early to acclimate.
• Ascend slowly. Avoid rushing the final climb.
• Stay hydrated. Drink an extra liter of water beyond your normal intake.
• Recognize early signs. If symptoms worsen, descend immediately.

Weather Preparedness

Sierra weather changes rapidly. Even on clear mornings, afternoon storms can roll in with little warning. Watch for:

• Darkening clouds on the western horizon
• Sudden drop in temperature
• Wind picking up speed

If you hear thunder, get off the open flat immediately. Head for the treeline or a low-lying area away from tall rocks. Do not shelter under isolated trees. Lightning strikes are common on exposed ridges.

Wildlife Etiquette

You may encounter mule deer, bighorn sheep, marmots, and golden eagles. Keep a respectful distance. Never approach or attempt to photograph wildlife with a telephoto lens from less than 100 yards. Store all food and scented items (toothpaste, lotion) in odor-proof bags inside your bear canister. Never leave food unattended, even for a minute.

Tools and Resources

Recommended Mapping and Navigation Tools

Reliable navigation is critical on this trail. Here are the most effective tools:

• Gaia GPS: Offers detailed USGS topo layers, satellite imagery, and offline route recording. Premium version includes trail difficulty ratings and user-submitted notes.
• CalTopo: Free web-based tool for planning routes, measuring elevation gain, and printing custom maps. Ideal for pre-trip preparation.
• AllTrails Pro: While not always accurate for obscure trails like Forbush Flat, it has user photos and recent condition reports that can help confirm trail visibility.
• DeLorme inReach Mini 2: A satellite communicator that allows two-way texting and SOS alerts. Essential for solo hikers.

Books and Guides

For deeper context, consult these authoritative sources:

• “Hiking the Eastern Sierra” by Tom Stienstra – Includes a detailed chapter on Forbush Flat and nearby routes.
• “Sierra Nevada: A Climbing Guide” by Jerry D. Spangler – Covers Mount Forbush and adjacent peaks for advanced hikers.
• “Leave No Trace: A Guide to the New Wilderness Etiquette” by LNT Center – The definitive guide to ethical outdoor practices.

Permits and Regulations

No permit is required to hike Forbush Flat. However, if you plan to camp overnight, you must obtain a free self-issue wilderness permit from the Inyo National Forest office in Bishop. These are available at the ranger station on Main Street or online via Recreation.gov. Permits are required for all overnight stays within the John Muir Wilderness boundary, which includes Forbush Flat.

Fire restrictions vary seasonally. Check current conditions at www.fs.usda.gov/inyo before departure. During extreme fire danger, all off-trail travel may be restricted.

Community Resources

Engage with local hiking communities for real-time updates:

• Eastern Sierra Hikers Facebook Group: Over 12,000 members who post recent trail conditions, weather alerts, and photos.
• Sierra Club Eastern Chapter: Offers guided group hikes to Forbush Flat in late summer.
• Reddit r/SierraNevada: Active forum for route questions and gear recommendations.

Real Examples

Example 1: Solo Hiker’s Experience – Sarah T., San Francisco

Sarah, a 34-year-old software engineer, hiked Forbush Flat alone in early August. She had trained for months with weighted packs and altitude acclimatization. “I didn’t tell anyone my exact route,” she says. “I used my inReach to send a check-in message every hour. The trail was quiet—only two other people the whole day.”

She reached the flat by 11 a.m., spent two hours sketching the landscape, and began her descent at 1 p.m. Just as she reached the treeline, a thunderstorm rolled in. “I was soaked, but I’d packed the emergency blanket. I sat under a rock overhang and waited it out. I’m so glad I brought the PLB.”

Sarah’s advice: “Bring extra layers. And don’t assume the trail is easy just because it’s not crowded. The rocks are slippery when wet.”

Example 2: Family Hike – The Rivera Family, Los Angeles

The Rivera family—parents and two children aged 9 and 12—hiked Forbush Flat as a weekend adventure. They started at 7 a.m. with snacks, hydration packs, and a game of “spot the wildlife.”

“We turned it into a scavenger hunt,” says mother Elena. “Find a marmot. Find a purple flower. Find a cairn. The kids never got bored.”

They completed the hike in 3.5 hours, including breaks. “The biggest challenge was the elevation,” says father Miguel. “We stopped every half-mile for water and deep breaths. We didn’t push. We just enjoyed it.”

They camped overnight in the nearby Bishop Creek area with a permit and returned the next day. “It’s not a day hike for kids unless you’re prepared,” Miguel adds. “But if you take it slow, it’s magical.”

Example 3: Photography Expedition – Marcus L., Portland

Marcus, a professional landscape photographer, visited Forbush Flat in late September to capture the golden aspen. He arrived at dawn, hiked with a tripod, and stayed until sunset.

“The light on the granite at sunrise is unlike anywhere else,” he says. “It turns the rock into molten gold.” He used a drone to capture aerial shots of the flat’s natural amphitheater shape. “I had to file a FAA waiver for flying above 400 feet in wilderness,” he notes. “Always check federal drone regulations—even if you think no one’s around.”

Marcus recommends bringing a lens hood to reduce glare on the bright rock surfaces and a microfiber cloth to wipe dew off equipment.

FAQs

Is Forbush Flat suitable for beginners?

Yes, but only for beginners who are physically fit and well-prepared. The trail is not technically difficult, but the elevation, exposure, and lack of markers require experience with backcountry navigation. First-time hikers should go with someone who has done the trail before.

Are dogs allowed on the Forbush Flat trail?

Yes, dogs are permitted but must be under voice control at all times. Due to the presence of wildlife and fragile vegetation, keep them on a leash or closely supervised. Pack out all waste.

Is there water on the trail?

No reliable water sources exist between the trailhead and the flat. There is a small, seasonal seep near the western edge of the flat in late summer, but it is not dependable. Always carry all the water you’ll need.

Can I camp on Forbush Flat?

Yes, but only with a valid wilderness permit. Camping is allowed anywhere on the flat, but avoid areas with dense vegetation or near petroglyphs. Use established fire rings if they exist, or use a camp stove.

How long does the hike take?

Most hikers complete the round trip in 4 to 6 hours. Faster hikers may do it in 3.5 hours; families or photographers may take 7+ hours. Allow extra time for rest, photos, and weather delays.

What’s the best time of year to photograph Forbush Flat?

Mid-August to early September offers the best combination of wildflowers, clear skies, and golden aspen. Sunrise and sunset provide the most dramatic lighting. Winter snowscapes are stunning but require snowshoes and extreme caution.

Is Forbush Flat part of a national park?

No. Forbush Flat lies within the Inyo National Forest and the John Muir Wilderness Area. It is managed by the U.S. Forest Service, not the National Park Service. This means fewer amenities but greater freedom for backcountry travel.

What should I do if I get lost?

Stop immediately. Stay calm. Use your GPS to determine your location. If you’re unsure, do not wander. Use your whistle (three blasts is the universal distress signal). If you have a satellite communicator, send your location and request help. Wait for rescue. Most lost hikers are found within 24 hours if they stay put.

Can I drive to Forbush Flat in a regular car?

Yes. Forbush Flat Road is a graded dirt road suitable for standard passenger vehicles in dry conditions. Avoid after rain or snowmelt. High-clearance vehicles are recommended but not required. Check road conditions with the Inyo National Forest before departure.

Are there any guided tours available?

There are no commercial guided tours specifically for Forbush Flat due to its remote nature. However, the Sierra Club and local outdoor outfitters in Bishop occasionally organize group hikes. Check their calendars in early summer.

Conclusion

Hiking the Forbush Flat is more than a physical journey—it’s an immersion into the quiet, ancient rhythm of the high Sierra. Unlike crowded trails that offer Instagram backdrops, Forbush Flat rewards patience, preparation, and presence. It doesn’t shout for attention; it whispers in granite and wind. To hike it properly is to honor the land, respect its solitude, and carry its stillness with you long after you return to pavement and noise.

This guide has provided you with the knowledge to navigate the trail safely, the wisdom to protect its integrity, and the inspiration to experience it deeply. Whether you come for the solitude, the photography, the challenge, or the stars that blaze above the flat at night, you’ll leave with more than a trail log—you’ll carry a piece of wildness that changes how you see the world.

Remember: the best hikes aren’t the ones with the most likes—they’re the ones that leave you breathless in the quietest way. Lace up, pack light, move mindfully, and let Forbush Flat reveal itself to you, one step at a time.