What the Pacific Crest Trail is and who hikes it

The Pacific Crest Trail (PCT) is a 2,650-mile hiking route that runs from the Mexican border near San Diego, California, to the Canadian border in Washington State. It passes through California, Oregon, and Washington, crossing deserts, mountains, and forests. The trail is maintained by the Pacific Crest Trail Association, a nonprofit organization, and managed by the U.S. Forest Service, National Park Service, and Bureau of Land Management across different sections.

Most people who hike the PCT do one of three things: thru-hike the entire trail in a single season (usually April through September), section-hike it over multiple years, or day-hike or backpack shorter segments. Thru-hikers typically take four to six months. The trail is open year-round, but snow in the Sierra Nevada and Cascade ranges makes most of the route impassable from November through April.

You do not need a permit to hike most of the PCT, but you do need one to camp in certain national parks and wilderness areas along the route. The specific permit rules depend on which section you are hiking and which agency manages that land.

Key Takeaways

  • The PCT runs 2,650 miles from the Mexican border in California to the Canadian border in Washington, crossing three states through deserts, mountains, and forests.
  • Most thru-hikers complete the trail between April and September, though the route is passable year-round in lower-elevation sections.
  • You do not need a permit to hike the trail itself, but you do need one to camp in national parks and some wilderness areas along the route.
  • Water sources are marked on maps and guidebooks, but availability varies by season and location—some stretches have no water for 20+ miles.
  • The Pacific Crest Trail Association maintains the trail and publishes official guidebooks that describe terrain, water sources, and resupply towns.

Permits and regulations by section

Permit requirements change depending on which part of the trail you are hiking. In California, you need a permit to camp in national parks like Yosemite and Kings Canyon, but not in most national forests or on Bureau of Land Management land. In Oregon and Washington, permit rules vary by wilderness area and national forest.

The easiest way to find out what you need is to contact the land management agency for the section you plan to hike. The Pacific Crest Trail Association website lists which agency manages each section and provides contact information. If you are thru-hiking and passing through multiple jurisdictions, you may need to obtain several permits from different agencies.

Some permits are issued on a first-come, first-served basis and can fill up during peak season (May through July). Others require you to specify your hiking dates in advance. A few sections, like parts of the John Muir Trail in California, have lottery systems for permits during certain months.

Water sources and resupply planning

Water is the most critical resource on the PCT. The trail crosses long stretches of desert in California and Oregon where water sources are scarce and sometimes unreliable. Most hikers carry a water filter or purification tablets and refill at streams, lakes, and springs marked on trail maps.

The official PCT guidebooks published by the Pacific Crest Trail Association describe water sources for each section, including distance between sources and whether water is reliable year-round or only during certain seasons. In early season (April and May), snowmelt provides water in high elevations. By late summer, many sources dry up. Some hikers use online resources like Halfmile's PCT maps, which crowdsource current water conditions from recent hikers.

Resupply towns are located along the route at intervals of 50 to 150 miles. Most hikers stop in these towns to buy food, take a shower, and sleep in a bed. Common resupply stops in California include Tehachapi, Lone Pine, and Mammoth Lakes. In Oregon, hikers often stop in towns like Ashland and Bend. Planning your resupply stops is essential because you cannot carry enough food for the entire trail.

Terrain and difficulty by region

The PCT is not a single difficulty level—it changes dramatically across its three states. Southern California begins in desert and chaparral, with exposed ridges and limited shade. The terrain is rocky and can be hot, especially in May and June. Elevation gain is moderate but relentless.

The Sierra Nevada in central California is the most challenging section for most hikers. It includes high mountain passes, steep climbs, and significant elevation gain over short distances. Snow lingers in the high passes into June and July. Many thru-hikers report that the Sierra is where they struggle most with altitude and fatigue.

Oregon and Washington are generally considered less strenuous than the Sierra, with more gradual elevation changes and better-established trail conditions. However, both states have wet weather, muddy sections, and dense forest that can be monotonous. Washington's Cascade Range includes steep climbs and exposed ridges, but the passes are lower than the Sierra.

Gear and physical preparation

Successful PCT hikers invest in lightweight gear because you will carry everything on your back for months. A typical thru-hiker's pack weighs 15 to 25 pounds without food and water. Ultralight hikers aim for 10 to 15 pounds. The difference between a 20-pound pack and a 30-pound pack compounds over 2,650 miles.

Essential gear includes a tent or shelter, sleeping bag rated for cold nights (the Sierra can freeze even in summer), a stove and cookware, a water filter, a headlamp, and navigation tools (maps, compass, or GPS device). Many hikers use trekking poles to reduce strain on knees during long descents.

Physical preparation should begin months before your hike. Most thru-hikers spend three to six months training, including long day hikes with a loaded pack, stair climbing, and cardiovascular work. The first two weeks on the trail are the hardest as your body adapts to daily hiking with weight. Many new hikers experience blisters, sore feet, and muscle soreness during this period.

When to start and seasonal considerations

Most thru-hikers start between late March and mid-May. Starting in late April or early May is the most common window because it allows time to reach the Sierra before snow becomes impassable, usually by late July or early August. Starting too early means hiking through snow in the Sierra; starting too late risks running out of daylight before reaching Canada.

Weather varies dramatically by season and location. Southern California can be hot and dry in May. The Sierra is cold and snowy in May and June, then warm and dry in July and August. Oregon and Washington are wetter and cooler, with frequent rain in September and October. Early-season hikers (March and April) face snow and cold but fewer other hikers. Late-season hikers (August and September) encounter crowds in popular sections but better weather in the Sierra.

Winter hiking on the PCT is possible but requires specialized skills and gear. Most of the trail is snow-covered from November through March, and many water sources freeze. Only experienced winter mountaineers typically attempt this.

Resources and planning tools

The Pacific Crest Trail Association publishes the official guidebooks, which are divided into three volumes covering California, Oregon, and Washington. These books describe the route in detail, list water sources, note resupply towns, and include topographic maps. Many hikers use both the printed guidebooks and digital resources.

Halfmile's PCT maps are a popular free resource created by a hiker and updated regularly. They show the trail, water sources, and resupply towns on detailed topographic maps. Other hikers maintain online forums and blogs where they share current conditions, water availability, and trail updates.

The Pacific Crest Trail Association also maintains a website with information about permits, trail conditions, and volunteer opportunities. If you are planning to hike, contact the association or the relevant land management agencies at least two to three months in advance to understand permit requirements for your specific route and dates.

Frequently Asked Questions

Do I need a permit to hike the entire Pacific Crest Trail?

You do not need a single permit for the whole trail, but you may need separate permits for specific sections. National parks and some wilderness areas require permits, while national forests and Bureau of Land Management land typically do not. Contact the land management agency for each section you plan to hike to confirm requirements.

How much does it cost to hike the Pacific Crest Trail?

Permit costs vary by location and agency, ranging from free to around $15 per permit. Gear, food, and lodging in resupply towns are the largest expenses. Most thru-hikers spend $4,000 to $6,000 total, though this varies based on gear choices and how often you stay in hotels or eat restaurant meals.

What is the best time to start a thru-hike?

Late April through mid-May is the most popular window. Starting in this period allows you to reach the Sierra before snow becomes impassable and finish in Canada before winter weather arrives. Earlier starts risk snow in the Sierra; later starts risk running out of daylight before the Canadian border.

Can I hike the PCT in winter?

Most of the trail is snow-covered and impassable from November through March. Winter hiking requires mountaineering skills, specialized gear, and experience with snow travel. Only experienced winter hikers should attempt this.

Where can I find current information about water sources and trail conditions?

The Pacific Crest Trail Association publishes official guidebooks with detailed water source information. Halfmile's PCT maps and online hiker forums provide real-time updates on current conditions. Many hikers also post updates on social media and trail-specific websites during the hiking season.