Trail Planning Guide

Lost Coast Trail Itinerary, Day by Day

King Range, California · 24.6 miles one way · 2 nights · Updated October 2026

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The Lost Coast is the longest stretch of California shoreline that no highway reaches. The northern Lost Coast Trail follows the beach and the low marine terraces for 24.6 miles from the mouth of the Mattole River to Black Sands Beach at Shelter Cove, below mountains that rise straight out of the sea. Three stretches flood at high tide, so the walk runs on the tide table rather than the clock. The plan below covers the trail in three days, the minimum the Bureau of Land Management recommends.

Plan two nights from Mattole to Black Sands Beach, timed to the tides. Reserve a King Range wilderness permit on Recreation.gov, where reservations open 90 days ahead. Carry a hard-sided bear canister for every person, since soft bags are not allowed. Cross the three tide zones near Punta Gorda, from Sea Lion Gulch to Randall Creek, and from Miller Flat to Gitchell Creek on an outgoing tide of three feet or less. Arrange the shuttle before you start, because the two trailheads sit about two hours apart by road.
24.6 miOne way (BLM)
3Tide zones
Sea levelMost of the way
2–3Nights
Topographic map of the Lost Coast Trail, with the route drawn in orange along the shoreline from Mattole south past Punta Gorda, Randall Creek, Spanish Flat, Big Flat, and Gitchell Creek to Black Sands Beach

The route from north to south, with the two camps of the plan below. Map data © OpenStreetMap contributors, elevation from Copernicus GLO-30.

Take the plan with you

The same two-night plan opens in Backpackers Friend as a ready-made trip, with both camps and both trailheads already placed, and the app routes between them along the trail. On a computer, scan the code with your phone's camera. On a phone, tap the button instead. With Premium, download the map before you leave and the route works in airplane mode. The GPX file carries the same route and waypoints for any other mapping tool.

Scan with your phone's camera to open the plan in the app.

The GPX route comes from OpenStreetMap data under the Open Database License.

The two-night plan, north to south

Mileages are measured along the trail line and scaled to the Bureau of Land Management's 24.6 miles. The trail stays near sea level, and the elevation model cannot separate the beach from the cliffs above, so this guide leaves out climbing figures.

DayRouteMiles
1Mattole trailhead to Spanish Flat9.9
2Spanish Flat to Big Flat6.8
3Big Flat to Black Sands Beach7.9

Day 1. Mattole to Spanish Flat, 9.9 miles

The trail leaves the Mattole River mouth and follows the beach south to the abandoned Punta Gorda Lighthouse near mile 3.2. The first tide zone lies near Punta Gorda, and the second runs from Sea Lion Gulch to Randall Creek, so check the tide table and time both for an outgoing tide of three feet or less. Spanish Flat, a broad marine terrace above the beach, sits just past Randall Creek near mile 9.9.

Day 2. Spanish Flat to Big Flat, 6.8 miles

The middle day follows the beach and the terraces south to Big Flat, a wide grassy flat at the mouth of Big Flat Creek. The short day leaves room to wait out a high tide on the third morning.

Day 3. Big Flat to Black Sands Beach, 7.9 miles

The third tide zone, from Miller Flat to Gitchell Creek, comes on the last day, so plan the start around the morning tide. Past Gitchell Creek the trail continues to Black Sands Beach at Shelter Cove. The Bureau of Land Management allows camping only north of Telegraph Creek and not at the Black Sands Beach trailhead, so finish the walk rather than camp near the end.

Three nights for a slower walk

Three nights add a first camp near Cooskie Creek, which shortens the first day and gives more room to time the tide zones.

DayRouteMiles
1Mattole trailhead to Cooskie Creek6.6
2Cooskie Creek to Spanish Flat3.3
3Spanish Flat to Big Flat6.8
4Big Flat to Black Sands Beach7.9

The tide zones

The Bureau of Land Management names three stretches that may be impassable at high tide. One lies near Punta Gorda, one runs from Sea Lion Gulch to Randall Creek, and one runs from Miller Flat to Gitchell Creek. Carry a tide table and walk each zone on an outgoing tide of three feet or less. Recreation.gov publishes the dates each season when the tides leave the route impassable, so check the calendar before you choose your dates. Our own February 2022 trip report covers what walking the route around the tides felt like on the ground.

Permits

Rules on the trail

Getting to the trailheads

The Mattole trailhead sits at the Mattole Recreation Site at the mouth of the Mattole River, and Black Sands Beach sits at Shelter Cove. The Bureau of Land Management puts the drive between them at about two hours, so leave a car at one end and arrange a shuttle to the other before you start.

Water

The Bureau of Land Management describes water as plentiful along the beach, from the creeks that cross the route. Treat all of the water.

Questions people ask

How long is the Lost Coast Trail?

The northern Lost Coast Trail runs 24.6 miles from the Mattole River to Black Sands Beach at Shelter Cove. The Bureau of Land Management recommends allowing at least three days.

Where are the tide zones on the Lost Coast Trail?

The Bureau of Land Management names three stretches that may be impassable at high tide, near Punta Gorda, from Sea Lion Gulch to Randall Creek, and from Miller Flat to Gitchell Creek. Walk each one on an outgoing tide of three feet or less.

Do you need a permit for the Lost Coast Trail?

Overnight trips need a King Range wilderness permit from Recreation.gov, where reservations open on a rolling 90-day window. Walk-up permits for up to three hikers are sold at the King Range Visitor Center in summer.

Do you need a bear canister on the Lost Coast?

Yes. Hard-sided bear canisters are required, one per person, and bags are not allowed.

Which direction should you hike the Lost Coast Trail?

This plan walks north to south from Mattole to Black Sands Beach, the direction the agency lists the trail. Either direction works as long as the tide zones are timed to an outgoing tide.

Sources

Distance, the tide zones, camping limits, walk-up permits, and drive times come from the Bureau of Land Management's Lost Coast Trail page, the permit fee and group size from the agency's King Range permits page, and daily capacity from the agency's 2025 King Range fact sheet. The reservation window, canister rule, and tide calendar come from the Recreation.gov permit listing. Rules change between seasons, so confirm each one with the agency before you go.

Plan the trip, then walk the plan

Backpackers Friend opens this plan as a trip on your phone, snaps the route to the trail, and lays the days out on a topo map. Planning is free with no account. Premium adds offline maps so the whole route works in airplane mode, plus off-trail alerts if you drift from the line.

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