Massacre Rim is a designated International Dark Sky Sanctuary in the Black Rock Desert region of northern Nevada — widely cited as one of the darkest accessible locations in the continental US. Bortle 1 sky with the playa and high desert terrain as foreground.
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Massacre Rim is extremely remote — plan for a self-contained overnight trip with all supplies. The nearest services are in Cedarville, California (35 miles west) or Winnemucca, Nevada (100 miles east). The Sheldon National Wildlife Refuge to the north and the Black Rock Desert to the south both contribute to the genuinely dark horizons in every direction.
Season: May–October · Extremely remote — full self-sufficiency required · New moon essential
Gear notes: Full self-sufficiency — extra fuel, water for 2+ days, all food, satellite communicator strongly recommended, high-clearance 4WD for some access routes
Moon phase · Bortle 1 · Transparency · Cloud cover
Push alerts · Saved locations · 3-day outlook
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