NASA Photo ID: SL4-138-3843        File Name: 10076369.jpg
Film Type: 70mm                    Date Taken: 01/01/74
Title: Northern California near San Francisco
Description:
A part of northern California centered near San Francisco Bay  (38.0N,
122.0W) photographed at 3 p.m. January 1, 1974, from the Skylab space 
station in Earth orbit. This near vertical view encompasses the coastline 
from Monteray Bay (right) to about 50 miles north of Point Reyes (left) and 
includes, from bottom to top, San Francisco Bay (center), Sacramento Valley 
(left center), San Joaquin Valley (right center), and the snow-covered
Sierra  Nevada. Afternoon shadows sharply delineate a valley which
parallels San  Francisco Bay, crosses Point Reyes, and lies between the Bay
and the Pacific  coastline. This valley marks the location of the San
Andreas Fault. Forces  acting on the crust are causing the land west
(bottom) of the fault line to  move north relative to land on the east
side. Agricultural areas in the  Sacramento and San Joaquin Valleys are
indicated by the tan areas which are  easily discerned in contrast to the
green-gray background.         
Subject terms:
BAYS                                    
CALIFORNIA                              
COASTS                                  
EARTH OBSERVATIONS (FROM SPACE)         
MOUNTAINS                               
ONBOARD ACTIVITIES                      
PHOTOGRAPHY                             
SKYLAB 4                                
SKYLAB PROGRAM                          
VALLEYS                                 

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