Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean: Vol. 5, Pt. 2

APPENDIX.
ings. A full description of the general characters of the rock, as shown at different points, has
already been presented. It much resembles a trappean rock, for which it would readily be mistaken, in hand specimens, unless the attention was specially directed to its granular structure.
Specimens from several localities are in the collection, together with masses of the associated
shales and the metamorphosed portions-the prasoid and jaspery rocks.
Table sh7owing the elevation above the sea of the pr anc-al plaCe8 mentioned in the report.
Feet.
Mount Diable'Diablo Range, (Beckwith) --------- --------------------------------------------------— 3, 960
Madelin Pass, Sierra Nevada, latitude 400 44' 12 ----------------- 667
Plateau of the Sierra Nevada, (Beckwith) —---— 5, —-— 440 —----------------------------------------
Second sumnmit of Madelin Pass, (Beekw~ith) —--------------------------— 5 5596
Noble's Pass, Sierra Nevada (B.ckw) —------------------------------------------------------------— 6,074
Carson Pass, Sierra Nevada, latitude 38 42' 15, (Goddard) —-------------------------------------------- 972
Breccia Pass, near the middle fork of the Stanislaus river, (Goddard) ------------------------------------— 10150
Walker's Pass, Sierra Nevada, latitude 350 39' 1(dr —----------------------------------------— 5,306
HumpahyamupPass, latitude 35~ 33' 38v, (Go d ad) —------------------------------------— 5,351
Taheechaypah Pass, latitude 35 07 28 ----------------------------------------------------------- 008
Tejon Pass, latitude 35 02' 47" --------------------------------------------------------------- 5,364
Canhada de las Uvas, latitude 34 54 40 2 —------------------------------------------------------------ 315
Cajon de Zenoco - Bernardino Sierra ----------------------------------------------------------------— 4256
San Francisquito, Bernardino Sierra 344 —------------------------------------------------------------— 5
Williamson's, (new Pass,) Bernardino Sierra ---------------------------------------------------------— 3, 164
Cajon Pass, Bernardino Sierra. ---------- --------------------------------------------------------- 4, 676
San Bernardino or San Gorgoio, Peninsula Sierra ------------------------------------------------------— 2,808
WVarner's Pass -Peninsula Sierra, leading from the Colorado Desert to San Diego --------------------------— 3, 780
San Fernando Pass, between San lFraucisquito Rancho and San Fernando —---------------— 1, 940
Livermore's Pass, Diablo Range, south of Mount Diablo ------------------------------------------------— 686
San Bernardino Mountain, Bernardino Sierra, (elevation undetermined probably) ---------------------------— 8,500
San Gorgoila Mountain, Peninsula Sierra, (elevation undetermined probably) —-------------— 7, 500
San Amedio Mountain, at the head of the Tulare Valley, (about) ----------------------------------------— 7,
Fort Miller, on the San Joaquin river, (about) --------------------------------------------------------— 402
Plain of Basaltic lava at Fort Miller —------—."*. —--------------------—, 200
Ocoya Creek Depot Camp. ---------------------------------------------------------------------------— 738
Tops of the tertiary hills at Ocoya Creek, (about). —------------------------— 1, 300
Tejon Depot Camp ---------- ------------------------------------------------ ---------------------— 1,447
Buena Vista, or Kern Lake ------------------------------------------------------------------------— 398
Dry Lake, in the Great Basin east of the Tejen Pass ---------------------------------------------------— 2,380
Soda Lake, at the sink of the Mojave river -----------------------------------------------------------— 1,137
Camp on the Mojave river. ------------------------------------------------------------------------— 2, 664
Lake Elizabeth, near the Pass of Francisquito, (about) -------------------------------------------------— 3, 000
Plain of San Fernando. ---------------------------------------------------------------------------— 1,048
Valley of the Santa Anna, at San Bernardino --------------------------------------------------------—, 118
Deep Well, at the margin of the Colorado Desert ------------------------------------------------------— 160
Valley of the Ancient Lake, Colorado Desert. This depression is estimated below the level of the sea.
Big Lagoon, Colorado Desert -------------------------------------------------------------------------— 70
Fort Yuma, junction of the Gila and Colorado ----------------------------------------------------------— 108
San Felipe Valley, Peninsula Sierra. —----------------------—.-___-_-_-_ —........ _ _ —--------- -2, 176
Warner's Valley, or Rancho, near Agula Caliente. —---------------------------— 2, 911
1 Most of these elevations were determined by the Expedition, and are taken from the tables.
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