The Mount Diablo Surveyors Historical Society

Marin Maps

Geographic Stories of West Marin

A Map Exhibit by the

Pacific Coast Science and Learning Center

Red Barn Classroom, Point Reyes National Seashore

1 Bear Valley Road, Point Reyes Station, CA

April 22 to June 30, 2006

In an international survey on geography by National Geographic and RoperASW in 2002, approximately three out of ten people surveyed in the United States could not identify the Pacific Ocean on a map. Can you find West Marin? Come experience this exhibit of beautiful and thought provoking local maps -- an atlas of Point Reyes, Tomales Bay and West Marin unbound.

This exhibit is collaboration between the Pacific Coast Science and Learning Center, Point Reyes National Seashore Association, the Tomales Bay Watershed Council and the Mount Diablo Surveyors Historical Society.

Links to event sponsers

Pacific Coast Science and Learning Center   http://www.nps.gov/pore/parkmgmt/pcslc.htm

Point Reyes National Seashore Association   http://www.ptreyes.org/

Tomales Bay Watershed Council   http://www.tomalesbaywatershed.org/

Please scroll down to view photographs and images of this event/exhibit...

Table of Contents

Exhibit Description/Public Events.
Location / Directions
Opening Day
List of the Maps
Cabinet 1, (room left)
Cabinet 1, top shelf, left
Map of Principal Meridians & Base Lines, U.S.
Cabinet 1, top shelf, right
Map of Point Reyes, CA 1918 15-minute Quadrangle
Cabinet 1, 2nd shelf, left
Map of Township Plat - Principal Meridian, Montana.
Cabinet 1, 2nd shelf, right
Map of Generalized Diagram PLSS
Cabinet 1, 3rd shelf, right
Map of Ransom's Survey Mt. Diablo Initial Point.
Cabinet 1, 3rd & bottom shelves
Cabinet 2 (room right)
Cabinet 2 top
Cabinet 2 middle
Cabinet 2 bottom
Plane Table Mapping Demonstration
1906 Earthquake Fault Line
Event curators
Event Credits
Bottom of the page.

Exhibit Description

There is a tremendous amount of graphic summarization of West Marin and its resources in maps, and these summaries assist decisions about the area's management-- and therefore its future. Many organizations plan, analyze, create and use maps about West Marin, with most of them centering on Tomales Bay and Point Reyes . Because of their size, most maps are utilized in-house and rarely reach a wide professional audience and even less often reach the public's eyes. This map conference is a way for people to see different cartographic views about this part of the world by displaying a selection of thought provoking local maps. Included in the exhibit are examples of reference maps about roads, trails, geology and watersheds, thematic maps showing land ownership and use over the past 150 years, analysis maps showing predicted owl habitat, sea level change, and grazing, art inspired by maps depicting the essence of the landscape, and others.


Photo #0
Pt_Reyes_2006_000.jpg (159,244 bytes)

Schedule of Public Events

Three public events:
1. Saturday, April 22nd, 2006. 1 PM to 5 PM. (Opening and Introductions are 1 to 1:30 PM) Map Presentations. Many of the map makers will be on hand to answer questions about their work and the content of the maps on display. A Licensed Land Surveyor will demonstrate mapping with a Plane Table and Alidade. This opening is free to the public.
2. Sunday, April 23rd, 2006. 10 AM to 1 PM. Since many of the maps are about Tomales Bay, this opening complements the Tomales Bay Watershed Council Events and the Recycle Circus events in Point Reyes Station.
3. Saturday, June 10th, 2006. 9 AM to 5 PM. The exhibit will be open all day, with the show’s curator on hand to answer questions. A Licensed Land Surveyor will demonstrate mapping with a Plane Table and Alidade This opening is free to the public.

(TOC)

Location / Directions

The Red Barn Classroom is located at the east end of the large red barn immediately on your left when entering the Point Reyes National Seashore. To access the parking lot, please use the first left turn as you approach the Bear Valley Visitor Center.

Photo #1
Pt_Reyes_2006_044.jpg (59,676 bytes)

(TOC)

Opening Day
Saturday, April 22, 2006

An opening day reception was hosted by the exhibit curator, Joseph Kinyon of the Pacific Coast Sicence and Learning Center. Many of the map makers were on hand to answer questions.

Photo #2
Pt_Reyes_2006_049.jpg (xx,xxx bytes)
Display Cabinet 2 (room right in back corner)


(TOC)


Photo #3
DSCN4526.JPG (81,125 bytes)


(TOC)

Photo #4
Pt_Reyes_2006_046.jpg (xx,xxx bytes)


(TOC)

Photo #5
DSCN4525.JPG (85,804 bytes)
Display Cabinet 1 (room left in back corner)

(TOC)

The Maps!

 

Featured Maps

 

 

Participant

Organization

Map Title

1

Rick Waterman

SFSU/Individual

Sea Level Inundation of Tomales Bay

2

Diana Stralberg

PRBO Conservation Science

Modeling Landscape Characteristics of Northern Spotted Owl Nest Sites

3

Katie Etienne, John Kelly

Adubon Canyon Ranch, Cypress Grove Preserve

Heron and Egret Nesting Colonies in the San Francisco Bay Area in 2005

4

Joseph Kinyon, Carola DeRooy

Pacific Coast Science and Learning Center, Point Reyes National Seashore Archives, Jack Mason Museum

Historic Maps of Land Ownership in Point Reyes

5

Tom Harrison

Tom Harrison Maps

Point Reyes Trail Map

6

Jonathan Lawton

California State Automobile Association

Marin

7

Tony Nelson

Marin Agricultural Land Trust

Marin County Farmland Protected by Marin Agricultural Land Trust

8

Christopher Castle

Artist

Landscape (tentative, working title)

9

Joseph Kinyon

Pacific Coast Science and Learning Center

Tomales Bay Watershed

10

David Schirokauer

Point Reyes National Seashore

Western Pastoral Zone, Natural Resource Sensitive to Grazing, Point Reyes National Seashore

11

Roberto Anima, Jack Chin

USGS

Tomales Bay Bathymetry Mapping

12

Louis Jaffe

Green Info Network

Vison Fire Map & Vision Fire Progression Map

13

Jack Boatwright & Howard Bundock

USGS

MMI Shakemap for the 1906 Earthquake determined by Boatwright and Bundock (2005) from the Damage Reports in Lawson (1908)

14

Tomales Environmental Learning Center

Tomales High School

Mapping Tomales High School's Watershed

15

Pam Van Der Leeden

Cordell Bank National Marine Sanctuary

National Marine Sanctuaries

16

Joseph Kinyon

Pacific Coast Science and Learning Center

Ancient Marin Coastline ~17-20k years ago

17

Marin students

Stinson Shoreline School District

Marinography

18

Dewey Livingston

Historian/Individual, Jack Mason Museum

Historic Map of Tomales Bay

19

Maggi Kelly

Sudden Oak Death Mortality Task Force

Sudden Oak Death in West Marin

20

Joseph Clark & Earl Brabb

USGS

Geology of Point Reyes

 

Supporting Maps

 

 

Participant

Organization

Map Title

21

Joseph Kinyon

Pacific Coast Science and Learning Center/U.S. Coast Survey

Map of a Part of Tomales Bay (1862)

22

Michael J. Foley, PLS

Mount Diablo Surveyors Historical Society/BLM

General Daigram of Rectangular System of Surveys

23

Michael J. Foley, PLS

Mount Diablo Surveyors Historical Society/BLM

Township Plat of Principal Meridian, Montana

24

Michael J. Foley, PLS

Mount Diablo Surveyors Historical Society/BLM

Map of Principal Meridians and Base Lines in the U.S.

25

Michael J. Foley, PLS

Mount Diablo Surveyors Historical Society/USGS

1918 Topographic Survey Pt. Reyes Quadrangle

26

Michael J. Foley, PLS

Mount Diablo Surveyors Historical Society/John W. Pettley, PLS

Survey of Co. Leander Ransom of Mt. Diablo

(TOC)

Display Items courtesy of the
Mount Diablo Surveyors Historical Society

Cabinet 1 (room left)


Photo #6
Pt_Reyes_2006_003.jpg (75,281 bytes)
 


(TOC)

Cabinet 1, top shelf, left.


Photo #7
Pt_Reyes_2006_004.jpg (xxx,xxx bytes)
Circa 1900's Sawyer & Hobby / NY "Y" level, Dietzgen Hand Level w/leather case, U.S. Army C.O.E. Bench Mark monument. Map on back: Map of Principal Meridians and Base Lines in U.S


(TOC)

Map of Principal Meridians and Base Lines in U.S.


Map #1
pmmap_thumb.gif(778,466 bytes)
Image courtesy U.S. Department of the Interior-Bureau of Land Mangement ©1988 Department of the Interior-Geological Survey, Reston Virginia-Public Domain
To see a larger image of this map, click on the link here:

The Principal Meridians and Base Lines of the United States Public Land Surveys


(TOC)

Cabinet 1, top shelf, right.

 


Photo #8
Pt_Reyes_2006_005.jpg (xxx,xxx bytes)
K&E Abney level w/scabbard, Circa 1950's Bausch & Lomb tilting level. Map on back; USGS (Topographic) Quadrangle Map - Pt Reyes 1918.

(TOC)

Point Reyes, CA 1918 15-minute Quadrangle


Map #2
PtReyes1918_1.jpg (212,910 bytes) PtReyes1918_2.jpg (212,910 bytes) PtReyes1918_3.jpg (212,910 bytes) PtReyes1918_4.jpg (212,910 bytes)
United States Department of the Intereior,Geological Survey, California Point Reyes, Quadrangle, 15 minute, R.B.Marshall, Chief geographer, Geo. R. Davis, Geographer in charge, Topography by U.S. Coast and Geodetic Survey, J.P.Harrisson, R.T.Evans, and C.P.Mckinley, Control by U.S.Coast and Geodetic Survey and L.D.Ryus, Surveyed in 1915-1916, Scale 1/62500, Contour intervrval 25 feet, Datum is mean sea level, Polycconic projection. North American datum, Edition of 1918, reprinted 1938, Approximate declination from True North in 1916 18-1/4° west.

To see a larger image of this map, click on the map segment links here:

PtReyes1918_1.jpg |  PtReyes1918_2.jpg |  PtReyes1918_3.jpg |  PtReyes1918_4.jpg


(TOC)

Cabinet 1, 2nd shelf, left.

 


Photo #9
Pt_Reyes_2006_007.jpg (xxx,xxx bytes)
Circa 1860 W. & L. E. Gurley survey magnetic compass, Chaining pins (6) with leather scabbard ("surveyor's arrows"). Map on back: Township Plat of Principal Meridian, Montana (from BLM 73 manual).


(TOC)

Township Plat of the Principal Meridian, Montana

Township 15 North, Range 20 East, of the Principal Meridian, Montana.


Map #3
Township_plat_principal_meridian_montana.jpg(338,197 bytes)
Image courtesy U.S. Department of the Interior-Bureau of Land Mangement,Washington D.C. ©September 20, 1972 - Public Domain

For a larger image of this map, click here:

Township Plat Principal Meridian, Montana

(TOC)

Cabinet 1, 2nd shelf, right.

 


Photo #10
Pt_Reyes_2006_008.jpg (xx.xxx bytes)
Günter’s ½ link chain (33 feet) J. Blatter / St. Louis Mo., Plumb bob- small brass with chord on reel. Public Land Survey "GLO Brass Cap" monument. Map on back; USGS (Topographic) Quadrangle Map - Pt Reyes 1918.


(TOC)

Generalized Diagram of the
Rectangular System of Surveys


Map #4
gen-dia_thumb.bmp(423,934 bytes)
To see a larger image of this map, click on the link here:

Generalized Diagram of the Rectangular System of Surveys


(TOC)

Cabinet 1, 3rd shelf, right.

 


Photo #12
Pt_Reyes_2006_006.jpg (xxx,xxx bytes)
Small Plumb Bob hung from bottom of transit over ground pt., Circa 1900's John Roach / SF transit (with compass), Small magnifying lens used to read venires on transit. Map on back: Survey of Col. Leander Ransom of the Mt. Diablio Initial Point.


(TOC)

Map of Col. Leander Ransom's Survey
of the Mt. Diablio Initial Point

July 17, 1851 - August 31, 1851


Map #5
Ransom_survey_image025.jpg(32,135 bytes)
Courtesy of John W. Pettley, PLS ©1987 all rights reserved

To see a larger image of this map, click on the link here:

Ransom's Survey of the Mt. Diablio Initial Point.


(TOC)

Cabinet 1, 3rd & bottom shelves

 


Photo #13
Pt_Reyes_2006_038.jpg (xxx,xxx bytes)
Third shelf: "GLO" monument, Plumb Bob, Chaining pins (6) with leather scabbard ("surveyor's arrows"), Plumb Bob.. Engineers link chain (50 feet). Bottom shelf: Equipment box (K&E alidade), Red/White target for use with level rod, Equipment box (Bausch & Lomb level).


(TOC)

Display Items courtesy of the
Mount Diablo Surveyors Historical Society
& National Park Service

Cabinet 2 (room right)


Photo #13a
Pt_Reyes_2006_013.jpg (xx,xxx bytes)
National Park Service; Top & bottom shelves. Mount Diablo Surveyors Historical Society; 2nd & 3rd shelves.


(TOC)

Cabinet 2, Top Shelf

1862 Map of a Part of Tomales Bay


Photo #14
Pt_Reyes_2006_010.jpg (xxx,xxx bytes)

Books on topographic map making, Surveyor's "Y" level, c1880-1900, historic book about U. S. Coast Survey mapping of the West Coast "The Coast Mapper" by Taylor Morrison.
Map in background: US Coast Survey, A.D. Bache Sup/Section X/Map of a Part of Tomales Bay, California/Surveyed by A.F. Rodgers, U.S.C.S., 1862, Scale 1:10,000

(TOC)

Cabinet 2, Second & Third Shelf



Photo #15
Pt_Reyes_2006_011.jpg (xxx,xxx bytes)

Cabinet 2, Second shelf: Cox stadia computer - W. & L. E. Gurley Co., Drafting tools in case, compass, pens etc. Hermann Kratt, Plane Table Mapping by Julian W. Low, A.Leitz Std. “foresters” pocket compass, K&E “High post” alidade-Use for Plane Table mapping, Striding level No. 5187A for use with K&E alidade for precise leveling.
Cabinet 2, Third shelf: Circa 1960’s Leitz Siokkisha Theodolite, model no. TM20C, Plumb Bob w/scabbard, Chaining pins (white & red) (11 is a full set) w/leather scabbard, strap & ring, Field book with formulas, Engineers steel ribbon tape (100 feet).

(TOC)

Cabinet 2, Bottom Shelf



Photo #16
Pt_Reyes_2006_012.jpg (xxx,xxx bytes)

Trimble backpack “inventory grade” global positioning satellite (GPS) receiver and data logger, Equipment case (Surveyor’s “Y” level).

(TOC)

Plane Table / Alidade Mapping Demonstration

Licensed Land Surveyor and Mount Diablo Surveyors Historical Society member Michael Foley gave a demonstration on how mapping was done with a Plane Table and Alidade. The base mapping used for almost all of the maps displayed for this map exibit use the Topographic Survey map from 1918 (with updates) as the base map for their work. The topographic data collected to prepare the topographic survey map used instruments very similar to the one shown here.


Photo #17
Pt_Reyes_2006_043.jpg(54,460 bytes)
Note vertical "stadia board" right of white propane tank at the fence.


(TOC)

Line of the 1906 Earthquake Fault Line


Photo #18
Pt_Reyes_2006_042.jpg(85,633 bytes)
The table is set up in line with the trace of the Great Quake of April 18, 1906
(Line of blue post, looking South.)


(TOC)

Event Curators

 


Photo #19
Pt_Reyes_2006_050.jpg (65,560 bytes)
Joseph Kinyon (l) and Michael Foley (r) pose in front of the completed display.


(TOC)

This display was mounted by Michael Foley, with assistance of Cris de la Paz of the Mount Diablo Surveyors Historical Society and Joshp Kinyon, Pacific Coast Science and Learning Center. Photographs by Michael Foley, ©2006 MDSHS. All rights reserved.

MDSHS is a California non-profit public benefit corporation organized under
IRS 501(c) (3) (Federal #8916806802, CA 1835904).
Website designed by and maintained by Michael J. Foley
Page last updated March 23, 2013
Copyright ©2013 MDSHS
http://www.mdshs.org