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July 19, 1863: Stanislaus River

July 19, 2013

Sonora Pass 06

Stanislaus River at Dardanelle Bridge; by Tom Hilton, on Flickr

Camp 127

We had intended to observe Sunday, as we did not the last one, but both my companions wanted to come down to a warmer level and my rheumatism advised the same thing, so we came over the summit and on about twenty miles. The summit is about 10,300 feet; there is snow in banks for some distance, then we sink into a canyon on one of the upper branches of the Stanislaus River and follow down that. We leave the volcanic region and get into one of granite. The canyon rises in steep hills on both sides, two or three thousand feet above the river. We camped at an altitude of about six thousand feet, where it is warm and pleasant.

Specimens collected: Allium validum; Trifolium variegatum var. pusillum.

2 Comments leave one →
  1. July 20, 2013 4:01 pm

    Perhaps Brewer took a slightly different route than the current Sonora Pass (CA St Rte 108), since the modern road crests at 9,600 feet, rather lower than the 10,300 that Brewer reports.

  2. William H. Brewer permalink*
    July 21, 2013 3:54 pm

    There isn’t really much alternative to Sonora Pass in the vicinity–certainly nothing that would fit his description. I think it’s probably just barometer error. Although Brewer’s elevation measurements were remarkably accurate given what he was working with, I’ve noticed that at the higher elevations he consistently overestimates by a few hundred feet.

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