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Black Point Fissures

Slot canyons carved in volcanic ash above Mono Lake

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Lee Vining, CA

About

Black Point Fissures sit atop Black Point, a volcanic hill on Mono Lake's north shore near Lee Vining. An underwater eruption thousands of years ago rapidly cooled ash and sediment, cracking the hilltop into a maze of narrow ravines — some more than 50 feet deep, with the longest stretching nearly a quarter mile. There's no maintained trail; you pick your way across sand, rock, and sagebrush to reach them.

Getting There

From US 395 near Lee Vining, turn east onto Cemetery Road and follow it roughly six miles — the last stretch unpaved — to a small parking area with an information board. A regular car can usually handle the road in dry conditions, but it's narrow and washboarded.

The Hike

It's a short but rugged cross-country walk, not a marked path, up the shoulder of Black Point to the fissure field. Once there, most of the cracks have sloping, walkable ends rather than sheer drops, so climbing down into them is straightforward. From the top, the view stretches across Mono Lake's tufa towers and the Mono Basin to the Sierra crest.

Before You Go

  • No water, shade, or facilities anywhere on the route — carry everything you need.
  • Summer heat is intense on the exposed volcanic ground; spring and fall are more comfortable.
  • Free primitive camping is available near the trailhead.

Frequently Asked Questions

Is there a maintained trail to Black Point Fissures?

No — it's a cross-country route over sand, rock, and sagebrush with no signed path. Hikers use the information board at the parking area and their own route-finding to reach the fissures.

How deep are the fissures?

Individual cracks range from just a few feet to more than 50 feet deep, and the longest runs nearly a quarter mile across the hilltop.

Do I need a 4WD vehicle to reach the trailhead?

In dry weather a regular car can usually manage the unpaved final stretch of Cemetery Road, though it's narrow and washboarded — check conditions after rain or snow.

Is there water or shade on the hike?

No. The route is completely exposed and waterless, so bring all the water you'll need, especially in summer heat.

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