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Fandango Pass

US / CA
41.80207, -120.20678View on MapOpen in Google Maps
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About this location

Fandango Pass is a gap in the Warner Mountains at 6,135 ft elevation, inside Modoc National Forest, Modoc County, California [1]. It's a genuine piece of emigrant-trail history — the Applegate Trail and Peter Lassen's trail both crossed here between 1846 and 1869, and the pass earned California Historical Landmark status in 1956 [1]. For rockhounds, it sits within Modoc County's broader agate-and-jasper country: the area around Goose Lake and the Warner Mountains is one of the better spots in northern California for agate and jasper, with chalcedony and quartzite also reported [2]. The pass itself is reached via a 10-mile graded gravel road, 1.5 lanes wide, that closes seasonally with winter storms [1]. This is public National Forest land, straightforward to reach in season, with real history as a bonus.

Always seek permission where required, follow local laws, and practice Leave No Trace. Locations and details are community-submitted and may be inaccurate. Not sure what's legal here? Read our full guide to rockhounding laws by land type.

Found Here

  • Agate, Chalcedony, Jasper: Modoc County generally, including the Warner Mountains/Goose Lake area, commonly produces these materials in float and stream gravel [2].
  • Quartzite: consistent with the metamorphic country rock typical of the Warner Mountains range.
  • Note: obsidian is separately regulated in Modoc National Forest — personal-use obsidian collecting requires a permit and is restricted to four specific sites in the Warner Mountain Ranger District (Middle Fork, Needles, Pink Lady, Rainbow) [3]. Fandango Pass is not one of the listed obsidian sites, and this listing's specimen set doesn't include obsidian.
AgateChalcedonyJasperQuartzite

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Getting there

Fandango Pass is reached via Fandango Pass Road (County Road 9), a 10-mile graded gravel road climbing from Surprise Valley, gaining about 1,600 ft over the final 2 miles to the summit [1]. The historical marker sits 10.8 miles east of Highway 395 on Fandango Pass Road [1]. Winter storms cause seasonal closures — check conditions before a cold-weather trip.

Collecting here

General Modoc County/Warner Mountains guidance limits surface collecting to one bucket per day [2] — treat this as a starting point and confirm current limits with the Modoc National Forest office, since collecting rules can change. Standard USFS personal-use rule applies to common agate/jasper/chalcedony/quartzite: surface collecting without digging, for personal use, without a permit. Obsidian is the exception requiring a separate permit and is restricted to other named sites in the forest, not Fandango Pass [3].

Know before you go

Fandango Pass is public land within Modoc National Forest [1]. General USFS personal-use collecting rules apply to the agate/jasper/chalcedony/quartzite found here — no permit needed for reasonable personal-use quantities of common surface material, but check current Modoc National Forest guidance directly, since a one-bucket-per-day limit has been cited for the broader Warner Mountains area [2]. Road access is seasonal — the gravel road can close with winter storms [1]. This is remote high-desert mountain country; bring water, a good spare tire, and check road conditions with the Modoc NF office before heading out in poor weather.

Location on Map

Coordinates: 41.80207, -120.20678

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Frequently asked questions

Is Fandango Pass in California open for rockhounding?

Yes. Fandango Pass sits within Modoc National Forest, public land where standard USFS personal-use surface collecting rules apply to agate, jasper, chalcedony, and quartzite.

What is Fandango Pass known for besides rockhounding?

It's a historic emigrant trail crossing — both the Applegate Trail and Peter Lassen's trail used the pass between 1846 and 1869 — and it became California Historical Landmark No. 546 in 1956.

Can you collect obsidian at Fandango Pass?

No — Modoc National Forest restricts personal-use obsidian collecting to four specific permitted sites in the Warner Mountain Ranger District (Middle Fork, Needles, Pink Lady, Rainbow). Fandango Pass isn't one of them; the agate, jasper, chalcedony, and quartzite found there fall under general surface-collecting rules instead.

How do you get to Fandango Pass?

Via Fandango Pass Road (County Road 9), a 10-mile graded gravel road climbing from Surprise Valley, about 10.8 miles east of Highway 395. It's seasonally closed by winter storms.

⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.

Sources

  1. https://en.wikipedia.org/wiki/Fandango_Pass — history, elevation, land status, road access, landmark designation.
  2. WebSearch synthesis (rockhoundr.com Modoc County snippet, yesdirt.com, Rockhounding Northern California book reference) — Warner Mountains/Goose Lake agate-jasper reputation, one-bucket-per-day collecting note, obsidian permission requirement.
  3. WebSearch synthesis (fs.usda.gov Modoc NF obsidian permit pages, Herald and News article) — four named obsidian permit sites (Middle Fork, Needles, Pink Lady, Rainbow), permit process, and that this is separate from general surface collecting.

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