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What is the San Lorenzo River watershed?

The picturesque San Lorenzo River winds its way north from Santa Cruz
through rugged canyons lined with redwoods.

 
San Lorenzo Valley Area
Photo Copyright (C)1996 John Terry Photography

Boulder Creek, the northernmost of the communities spread out along the river, is thirteen miles north of Santa Cruz at the junction of Bear Creek, Boulder Creek, and the San Lorenzo. Each of the communities along the length of the river valley has a fascinating and colorful history.

Early settlers struggled with a lack of access and suitable transportation for timber. The original trusty oxen were replaced by wood burning donkey engines. Eventually a 13 mile long flume built from Felton to the headwaters of the San Lorenzo River carried lumber for more than 10 years. A road along the river was completed in 1868, and the railroad began to run from Santa Cruz to Felton in 1875 and from Santa Cruz to Boulder Creek by 1885.

Most of the Valley's timber had been cut by the early 1900's, and by 1915 all of the large companies had stopped logging there. However, the rich soil remaining when the trees had been stripped provided opportunities for farmers. And the increasing transportation options developed for the logging industry made the Valley more accessible to "summer people" who enjoyed coming to the valley for its Alpine shade and cool temperatures.

The scenic beauty of the redwood groves remains as an important attraction to this area. The redwoods which line the Valley now are second growth trees which have repopulated the hills once stripped bare by loggers. Residents take as much advantage of the natural beauty and recreational opportunities as the summer visitors do.

The information above was obtained from the article "Focus on San Lorenzo Valley," which appeared in The Coastal Homes Supplement, Volume 16, #14 - July 23, 1996. Author: Sally Wing.

How much do you know about the San Lorenzo watershed?
Take this quiz to test your watershed knowledge!

1. What is a watershed?
a) Where a river empties into the ocean
b) The land area drained by a given river
c) A storage place for water
d) A single body of freshwater

2. How long is the San Lorenzo River?
a) 5 miles
b) 143 miles
c) 2,000 miles
d) 25 miles

3. How much water (on average) passes through the river during the summer?
a) 10 cubic feet per second
b) 100 cubic feet per second
c) 1,000 cubic feet per second
d) 1 cubic foot per second

4. What type of forest surrounds the San Lorenzo watershed?
a) Shrubbery
b) Riparian
c) Rain Forest
d) Grassland

5. What endangered fish species is in the San Lorenzo watershed?
a) Blue Gill
b) Coho Salmon
c) Black Tuna
d) "Sukker" Fish

6. Residents from which cities receive water from the San Lorenzo River?
a) Santa Cruz
b) Scotts Valley
c) Ben Lomond
d) All of the above

7. Which of the following is not a tributary of the river?
a) Bear Creek
b) Branciforte Creek
c) Redwood Creek
d) Fall Creek

8. How do roads and construction near the water affect the river?
a) Erosion and siltation
b) Nutrients enter the stream
c) Lowers water quality
d) A and C

9. Is Loch Lomond a natural or man-made reservoir?
a) Manmade
b) Natural
c) What is Loch Lomond?

10. What is the “rubber dam?”
a) A dam in Scotts Valley
b) A reservoir in Santa Cruz
c) Loch Lomond Dam
d) A conversion dam in Felton

11. How can I protect my watershed?
a) Volunteering for a “Clean Up Day”
b) Conserving water at home, school and work
c) Educating myself
d) All of the above


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