Audible Mount Diablo
Index
Index to Audible Mount Diablo
updated July 2019

GUIDES

BLACK DIAMOND MINES (BDM) 2018 
Speakers: Seth Adams, Heath Bartosh, Kevin Dixon, Robert Doyle, Scott Hein, Ken Lavin, Ray Sullivan. Main topics: Geology, coal mining, sand mining, restoration, rare plants, chaparral, grazing, conservation, Coulter pines, bush poppies, white shooting stars. Hike described is 6.6 miles, elevation gain 1,400 feet. 

CURRY POINT (CP) 2012
Speakers: Seth Adams, Malcolm Sproul. Main topics: Balancing Rock, Blackhawk land dedications, chaparral, chaparral birds, peregrine falcons, giant water bugs, wind caves, knobcone pines, Alameda whipsnakes,  Hike described is 6.5 miles, elevation gain 1,100 feet. 

FALLS TRAIL (FT) 2019
Speakers: Burt Bogardus, Paul Cardinet, Ken Lavin, Jenn Roe. Main topics: waterfalls, Donner Canyon natural and cultural history, trailblazing equestrian George Cardinet, 1977 Fire, ferns, pines, chaparral, oracle oak, leather oak, Albert Kellogg, geology (basalt and chert). Hike described is 6 to 8.5 miles, elevation gain 2,000 feet. 

GEOLOGY ON THE MARY BOWERMAN TRAIL (GMB) 2017
Speaker: Ken Lavin. Main topics: Bay Area geology, lichen, vultures, botanist Mary Bowerman. Hike described is a 1-mile-long loop near the summit, mostly flat. The first two-tenths of a mile are wheelchair accessible. 

GRAND LOOP (GL) 2010
Speakers: Seth Adams, Ken Lavin, Mike Moran, Beverly Ortiz. Main topics: diabase mining, juniper, bay laurel, spotted towhee, scrub jay, manzanita, Murchio family, chaparral pea, mining history, Native peoples’ legends. Hike described is 6.8 miles, elevation gain 1,800 feet. 

HARVEST OF FIRE: A HIKER’S GUIDE TO MOUNT DIABLO PLANTS  (HF) 2019
Speakers: Heath Bartosh, Seth Adams, Robert Doyle Brian Peterson, Cyndy Shafer, Kip Will. Main topics: Mount Diablo’s botanical riches—its trees, shrubs and wildflowers—and where to find them on five classic hikes in Mount Diablo State Park: 1) Mary Bowerman Loop near the summit. 2) Perkins Canyon on the east side. 3) Curry Point on the south side. 4) North Peak Trail, starting at Devil’s Elbow. 5) Back Canyon on the north side. Botanist Mary Bowerman is profiled in one segment. In another, the botanical discoveries of David Douglas, Alice Eastwood, John Howell and David Gowen are highlighted. 

INTRODUCING MOUNT DIABLO (IMD) 2017
Speakers: Seth Adams, Gary Bogue, Ken Lavin, Mike Moran, Beverly Ortiz, Carl Nielsen. Main topics: history, wildlife, mountain lions, tarantulas, poison oak, wild pigs, native peoples, the mountain’s name, Whitney Survey, coal mining, early tourism, preservation history, recreation. 

LIME RIDGE (LR) 2012
Speakers: Seth Adams, Heath Bartosh, Scott Hein, Lesley Hunt. Main topics: restoration (natural and human-aided), lime mining, housing developments, chaparral, blue-gray gnatcatcher, western fence lizard, Mount Diablo sunflower, big tarplant, wild turkeys, carpenter David Gowen’s discovery of a new flower species. Hike described is 4 miles, elevation gain 700 feet. 

LOS VAQUEROS (LV) 2014
Speakers: Seth Adams, Mike Moran, Marguerite Patil, Adrian Praetzellis, Malcolm Sproul. Main topics: prehistory, tule elk, grizzlies valley oak blue oak, coast live oak, Edith Ordway, Suñol Adobe, kit fox, golden eagle, ground squirrel, Vasco Adobe, Oscar Starr, dam and reservoir, wind power, tiger salamander, red-legged frog. Hike described is 4 to 9 miles long. 

MITCHELL CANYON (MC) 2017
Speakers: Sue Donecker, Ken Lavin, Rich McDrew, Jim Mitchell. Main topics: Jedediah Smith, 1860s mining era, 1977 fire, ground squirrels, ladybugs, coast live oaks, Coulter pines, gray pines, soap plant, acorn woodpecker, buckeyes, willows, wildflowers. Hike described is two miles long with minimal elevation gain. 

PERKINS CANYON (PC) 2014
Speakers: Seth Adams, Jean Hetherington, Anne Homan, Ken Lavin. Main topics: geology, history, mercury mining, 2013 Morgan Fire. The hike described is about two miles, with 300 feet of elevation gain. 

PLANTS OF TWIN PEAKS (PTP) 2018
Speakers: Sue Donecker, Ken Lavin, Jim Mitchell, Frank Valle-Riestra (with Carl Magruder as John Muir). Main topics: how the poppy got its odd scientific name, why Druids revered mistletoe, how dozens of California wildflowers made their way to English gardens in the 19th century, three flowers named for animals, three named for characters in English literature, serpentine soils, 1977 fire, and history, through the stories of John C. Fremont, Isaac Mitchell, and Joel Clayton. The hike described is about 4 miles, elevation gain 1,100 feet.

ROCK CITY (RC) 2018
Speakers: Ken Lavin, Rich McDrew, David Mackesey. Main topics: natural and cultural history of one of the first areas acquired for Mount Diablo State Park, including evidence of Native peoples, the state park dedication ceremony, geology, madrone, ferns, spring wildflowers. The hike described is 1.6 miles long, starting and ending at the Live Oak Campground sign in the Rock City parking area. Moderate ups and downs. Optional climb to Sentinel Rock. 

ROUND VALLEY (RV) 2012
Speakers: Seth Adams, Robert Doyle, Scott Hein, Brian Kruse. Main topics: Native people, John Marsh, ground squirrels, kit foxes, birds (including Lewis’s woodpeckers and phainopeplas), dump wars, Jim Murphy, acquisition and establishment of the park by East Bay Regional Park District. Three options for exploring the park are described: a picnic beside Marsh Creek, a 5-mile hike with 750 feet in elevation gain around the Hardy Canyon Loop, or a 6-mile hike with a 250-foot elevation gain around the Valley Loop.

TRAIL THROUGH TIME (TTT) 2016
Speaker: Ken Lavin. Main topics: 190 years of geologic history, as evidenced in a 6.3 mile walk from the top to the bottom of Mount Diablo, as well as some cultural history including the California Geological Survey, Andrew Lawson, construction of trail.  Due to the number of stops (and an elevation loss of 3,000 feet), the tour is broken into two parts.  


INDEX of topics
(The numbers and letters below indicate the segment and name of the guide in which a topic is discussed.  For example “4.1 LR” is segment 4.1 of the Lime Ridge Guide.)

Achillea millefolium 10 (part 2) PTP

Acmispon 5 HF
Acorns
and Native people 8 RC

Adams, Grizzly 11 IMD

Adams, Seth 2 IMD

Aeolian harps 6 (part 1) PTP

Age of Discovery 4.1 LR

Alamo Creek 2 CP

Alder 6 CP

Altamont Pass 3.1 RV

Altamont Wind Resource Area 10 LV

Altube, Bernardo 8 LV

Antioch development 13 BDM

Archaeology, Los Vaqueros 2 LV

Artemisia
Californica 5 MC, 9 (part 2) PTP
vulgaris 9 MC

Artist Point 10 RC


Ash, California 12 FT

Baby blue eyes 7 (part 2) PTP

Back Canyon 4 (part 1) PTP, 8 HF

Badger 8 LR 

Balancing Rock 11 CP

Bald Ridge Trail 5 GL

Bartosh, Heath 1 HF, 8 HF

Basalt, pillow (“greenstone”) 2 GMB, 3 GMB, 1.3 MC, 1.1 TTT, 1.3 TTT, 1.7 TTT, 11 FT

Basque sheepherders 8 LV

Bay
laurel (tree) 1 GL, 4 HF

Bayberry Pond 1.1 LR

Bee plant 2 (part 2) PTP

Beechey, Frederick William 2.1 RV

Beetles
charcoal 6 PC, 3 HF
ladybird 6 MC

Bell, Doug 3.1 RV

Bicentennial tree 2 MC

Bicycling 15 IMD

Birds
chaparral 8 CP
at Deer Flat 3 GL
(see also bird names)

Bird’s beak, Mount Diablo 8 HF

Bitterroot (Lewisia) 2 HF

Blackbird, red-winged 9 LR

Black Diamond Mines Preserve BDM guide

Blackhawk
community 6 CP, 7 CP
Ranch Quarry 7 GMB, 2.7 TTT
land dedications 7 CP
Ranch 7 CP
“Wars” 7 CP

Blomberg, Vic and Ray 9 PC

Bluebirds 5 RV

Blueschist 1.7 TTT

Bogardus, Burt 4 FT

Bowerman, Mary 14 IMD, 1 GMB, 7 HF, 4 FT

Bradley Mining Company 9 PC

Brewer, William 7 GL, 6 IMD, 11 IMD, 3 MC, 2 PC, 2 RV, 3.0 TTT, 5 (part 1) PTP 

Bruce Lee Road 7 (part 1) PTP

Buckeye
California 3 LR, 8 MC, 4 HF

Buckwheat
Mount Diablo 4.1 LR, 5 BDM, 8 HF

Burgess, Robert Noble 13 IMD, 6 RC, 9 RC

Burma Road 1 GL

Bush mallow
Fremont’s 9 MC

Buttercups 2 CP, 1 (part 1) PTP

Butterfly
mourning cloak 8 MC

California Geological Survey 7 GL, 3.0 TTT

Cakebread family 
(including Robert, Vernon) 4 RV, 4.1 RV

Camping 15 IMD

Cardinet, George 3 FT

Cardinet, Paul 3 FT

Ceanothus
buckbrush 12 (part 2) PTP
jimbrush 12 (part 2) PTP

Cerro Alto de los Volvones 4 MC, 6 RV

Chamise 11 BDM, 6 LR, 11 (part 2) PTP, 6 HF

Chamisso, Adelbert von 4 (part 2) PTP

Chaparral
broomrape 6 (part 1) PTP
habitat           11 BDM,  8 CP,  6 LR, 6 (part 1) PTP, 6 HF, 7 FT
Loop (trail) 14 BDM
pea (shrub) 4 GL, 6 HF
near Curry Point 6 HF

Checker lily 5 RC

Chert
radiolarian 2 GMD, 5 GMB, 4 PC, 1.1 TTT, 1.6 TTT, 12 FT
-shale couplet 12 FT

Civilian Conservation Corps 14 IMD, 4 RC, 7 RC

Clapper stick 9 GL

Clarkia
red ribbons 5 GL

Clayton 
Joel 3 (part 1) PTP
Quarry 2 GL
town of 3 (part 1) PTP


Claytonia 2 HF

Clematis 14 (part 2) PTP

Climate change 9 HF

Cinnabar 2 PC, 5 PC

Coal Canyon 5 BDM

Cocklebur 8 BDM

Concord-Mt Diablo Trail Ride Assn 3 FT

Concord’s Crossing, neighborhood 2 LR

Condor
California 7 GL
of legend 9 GL

Conservation
Blackhawk 7 CP
Black Diamond Mines 6 BDM, 7 BDM
value of 11 GL
Lime Ridge 4 LR, 5 LR, 6 LR
North side of mountain 2 GL
Perkins Canyon 2 PC
Round Valley 4 RV, 4.2 RV, 8.1 RV
South side of mountain 7 GL


Contra Costa Water District 9 LV

Cook, Dan & Seth 6 RC

Coulter
pine 12 BDM, 2 IMD, 10 MC
Pond 7 (part 1) PTP
Thomas 10 MC

Cowell, town of 2 LR

Coyote brush (or bush) 9 MC, 5 HF

Coyote mint 8 (part 2) PTP

Cretaceous/Tertiary boundary 2.1 TTT

Crystyl Ranch subdivision 4 LR

Cumberland Trail 6 BDM

Curlew, long-billed 5 RV

Currant, Chaparral 7 (part 2) PTP

Curry 
Creek 2 CP
James 2 CP
Point (trailhead) 2 CP

Dacite 3 PC, 4 PC

Dan Cook Canyon 6 RC

Datura 3 LR

Deadfall, The 3 (part 1) PTP

Deer Flat 3 GL

Deerweed 6 HF

Delphinium 8 (part 2) PTP

Delta
Sacramento-San Joaquin 5 BDM, 5 GL, 7 GMB

Devil’s Elbow 9 GL

Devil’s Pulpit 8 GMB, 8 GL

Devil’s Slide 
ridge 2.8 TTT
Trail 3 CP

Diabase 2 (part 1) PTP

Diablo 
Country Club 9 RC
Range 11 GL, 9 HF
stoves 7 RC
Trail 4 CP

Doctrine of Signatures 3 PTP

Donner Canyon 4 (part 1) PTP, 2 FT
cabin site 5 FT

Douglas, David 10 MC, 7 (part 2) PTP, 2 RC, 8 HF

Doyle, Robert 4.2 RV, 5 FT

Dudleya 2 IMD

Dump wars 4 RV, 4.2 RV

Duracrust 3 RC

Eagle
golden 15 BDM, 13 CP, 3 IMD, 7 LV, 3.1 RV
Peak 6 (part 1) PTP

Earliest people 2 LV

East Bay Regional Park District 2 RV, 2.1 RV

Eastwood, Alice 8 HF

Eocene Epoch 4 RC

“Edible” geology 5 GMB, 1.1 TTT

Elderberry 9 GL

Elephant Rock 9 RC

Elk, tule 3 LV

Endemism 2 IMD

Endozoochory 8 BDM, 11 FT

Epperson, Roger 2 BDM, 3 RV, 7 RV

Eocene Epoch 1 BDM

Epizoochory 8 BDM, 11 FT

Eschscholtz, Johann Friedrich von 4 (part 2) PTP

Eye of Diablo 8 GL

Fairy lantern
Mount Diablo 5 BDM, 4 CP, 2 IMD, 7 MC, 7 (part 2) PTP
(Calochortus pulchellus)
white 5 BDM

Falcon, peregrine “Extra” CP

Faults, in geology 2 GMB, 8 GMB, 3 PC

Ferns
general information 6 FT
golden back 5 RC, 6 FT
maidenhair 5 RC, 6 FT
polypody 5 RC
wood 5 RC, 6 FT


Fiddleneck 7 LR

Fig Pig Cove 3 LV

Fire
1977 9 MC, 7 PC, 4 (part 1) PTP, 7 HF, 4 FT
1981 10 CP
followers (plants) 9 MC, 5 HF
Interpretive Trail 9 MC, 4 FT
Morgan 2013 6 PC, 7 PC, 10 PC, 3 HF

Flicker, northern 3 CP

Fossils
sand dollars 7 GMB, 7 RC
gomphotherium 7 GMB
turritella snail 2.4 TTT

Fox, kit 7 LV, 7 RV

Franciscan 
Melange 1.4 TTT
rocks (or Complex) 2 GMB, 1 TTT

Fremont, John C. 5 (part 2) PTP

Fremont’s star lily 5 (part 2) PTP

Frick, Walter 14 IMD

Friends of Marsh Creek Watershed 2 RV

Frog, red-legged 11 LV, 8 RV

Fuchsia, California 2 (part 1) PTP

Galindo Creek 7 LR

Garaventa family 14 BDM

Garden of the Jungle Gods 13 IMD, 9 RC

Geological Survey, 1860s 11 IMD, 3 MC

Geophytes 5 HF

Giant water bugs 6 CP

Gill Hill Cherry Spitting Society 4.2 RV

Ginochio family 7 LR

Globe lily 
Mount Diablo 5 BDM, 4 CP, 7 MC, 7 (part 2) PTP
Trail 10 MC

Gnatcatcher, blue-gray 6 LR

Golden Gate Audubon Society 10 LV

Gomphotherium 7 GMB, 2.10 TTT

Gowen, David 4.1 LR, 8 HF

Grand Loop GL guide

Grapes 6 MC

Grass
bunch 7 MC
purple needle 3 LR 

Grassland habitat 7 LR, 7 LV, 5 RV

Grazing 7 LR, 10 BDM

Great Valley Sequence 7 GMB, 1.2 TTT, 2.1 TTT, 2 FT

Greathouse Visitor Center
Black Diamond Mines Intro BDM

Greenstone (“pillow basalt”) 2 GMB, 3 GMB, 1.3 TTT, 1.7 TTT

Grinding holes 8 RC, 6 RV

Grizzly bear 3 LV, 4 MC

Ground squirrels 3 IMD, 7 LV, 1.2 MC, 2.1 RV

Hall, Joseph Seavey 13 IMD

Hardy Canyon 3 RV

Hawk
red-tailed 15 BDM, 7 LV

Hearst, William Randolph 13 IMD, 9 RC

Hendricks-Franco, Lindsey 6 HF

Henry Cowell Lime
and Cement Company 2 LR

Hetherington, William & Blenda 5 FT

Hiking 15 IMD

Hop tree 3 LR

Hornbeck, Hulet 4 RV

Hound’s tongue 3 PTP

Howard, E.A. 8 PC

Howell, John 8 HF

Hummingbird, Anna’s 6 LR 

Indian paintbrush 11 BDM

Indian potatoes 6 RV

Indian warrior 11 BDM, 5 GL, 6 (part 2) PTP, 5 RC, 8 FT

Indian paintbrush 6 (part 2) PTP, 8 FT

Ithuriel’s spear 6 RV, 1 PTP

Jay
scrub 3 CP, 3 GL
Stellar’s 3 CP

Jewel flower, Mount Diablo 5 HF, 13 FT

Jimson weed 3 LR


Juniper 
Camp 1 GL
tree 1 GL, 6 (part 1) PTP, 11 FT

Kellogg, Albert 9 FT

Kellogg Creek 8 LV

King, Clarence 3.0 TTT

Kirker, James 6 RC

Kite, white-tailed 9 LR

Knowing your place 11 GL

Kraetsch, Ralph 9 LR

Kreiger Peak 7 BDM

Kruse, Brian 4 RV, 4.1 RV, 8.1 RV

Ladybugs 6 MC

Larkspur
red & purple 8 (part 2) PTP, 5 HF
naming of town of 8 (part 2) PTP, 11 FT
scarlet 11 FT

Lavin, Ken 1 GMB

Lawlor tuff 1 BDM, 8 GMB

Lawson, Andrew 2 GMB, 1 TTT, 3.1 TTT

Lichen 4 GMB, 12 FT

Liesegang structures 2.6 TTT

Lily
Calochortus splendens 6 HF
checker, chocolate 5 GL, 5 RC
Fremont’s star 5 (part 2) PTP
globe 5 BDM, 4 CP, 7 MC
Oakland star tulip 6 HF


Lime Mining 2 LR

Lime Ridge LR guide

Lizard 3 IMD
sagebrush 7 LR
western fence 6.1 LR

Los Vaqueros LV guide
dam, reservoir 9 LV

Lupine 8 (part 2) PTP

Lyon, Craig 3.2 TTT

Madrone 
Canyon 2 CP, 2.7 TTT
tree 3 CP, 2 RC, 2.7 TTT

Mallow
bush 6 HF

Mangini Ranch 7 LR

Manhattan Trail, Canyon 10 BDM

Manroot 14 (part 2) PTP

Manzanita 11 BDM, 8 CP, 4 GL, 2 RC, 8 HF
big berry 4 (part 1) PTP
Mount Diablo (endemic sp.) 8 CP, 6 HF, 8 HF
after fire 7 PC


Maple, bigleaf           4 CP

Marin headlands terrane 5 GMB

Marsh, John 2 IMD, 6 RC, 2 RV

Marsh Creek 2 RV
pollution problems 9 PC
Preservation Area Corridor 4 RV, 4.2 RV
State Park 2 RV

Mary Bowerman Science 
and Research Program 3 HF

Mary Bowerman Trail, botany 2 HF

McDaniel, Frances 9 IMD

McDrew, Rich 5 FT

Medusahead 5 RV

Menzies, Archibald 7 (part 2) PTP, 2 RC

Mercury 2 PC, 8 PC, 9 PC

Meridian marker 14 CP

Merriam, C. Hart 9 GL

Metacinnabar 2 PC

Milkmaids 3 PTP

Milliken, Randall 6 RV

Miner’s Trail 14 BDM

Mining around MD
by the Welsh 3 BDM
coal Intro BDM, 3 BDM, 12 IMD
diabase 2 GL, 3 MC
history of 6 GL, 3 MC, 3.0 TTT
mercury 2 PC, 8 PC, 9 PC
sand 9 BDM

Mistletoe 2 MC, 1 (part 2) PTP

Mitchell 
Canyon MC guide
Canyon Visitor Center 1.1 MC
Doug 2 (part 1) PTP
Isaac 6 MC, 2 (part 1) PTP
Rock 1.3 MC, 2 (part 1) PTP

Miwok Trail 5 RV

Middle Trail 8 FT

Monkey flower 6 HF

Montecito housing project 3 LR

Monte del Diablo 10 IMD

Montmorillonite 2.10 TTT

Morgan 
Fire 6 PC, 7 PC, 10 PC
Jeremiah 4 MC, 5 PC
Road 5 PC

Morning glories (“trip vines”) 5 HF

Moth, elegant sphinx 3 HF

Mountain House 10 GL, 13 IMD 

Mountain Lion 4 IMD

Mount Diablo 
Estates 9 RC
geologic formation of 8 GMB, 2.0 TTT 
importance of 2 IMD
naming of 10 IMD
second park dedication 10 RC
Thrust Fault 2.0 TTT
Trail Ride Association  5 GL

Mount Olympia 5 GL, 4 (part 1) PTP

Mount Zion 2 GL, 2 (part 1) PTP

Mugwort 9 MC

Muir, John 13 IMD, 2 (part two) PTP

Murchio
Gap 4 GL
family 4 GL, 6 MC

Murphy, Jim 4.2 RV

Murphy, Thomas 5 RV

Murphy Meadow Trail 6 RV

Native peoples 9 IMD, 6 RV
birthplace of world 9 GL, 9 IMD
elderberry 9 GL
grinding holes, acorns 8 RC
Volvon 4 MC, 5 PC, 6 RV
Yokuts, Bay Miwok, 
Ohlone 8 RC

Native plant garden 1.2 MC

Navarretia gowenii 4.1 LR, 5 BDM, 8 HF
aka Lime Ridge navarretia

Nejedly, John 7 HF

Newhall projects 4 LR

Nitrogen-fixing plants (and fire) 6 HF

North Gate Road 9 RC

North Peak 2 PC

North Peak Trail 5 HF

Norton, Noah & Sarah 4 BDM 

Nortonville 
town 4 BDM 
shale 1 BDM

Oak
coast live 3 LR, 5 BDM, 4 LV, 2 MC
blue 4 LV, 1.3 MC, 7 (part 2) PTP, 3 RV, 4 HF, 2 FT
deciduous v live 4 HF
interior live 5 BDM
leather 10 FT
oracle 9 FT
poison 7 IMD, 1.3 MC
valley 3 GL, 4 LV, 2 FT

Oak Habitat Restoration Project 9 LR

Olive, desert 7 LR

Olympia, Mount
naming 3 FT

Onion
Allium unifolium 5 HF

Ophiolites 4 PC, 1.2 TTT

Ordway, Edith 5 LV

Ornithochory 11 FT

Ortiz, Beverly 6 RV

Paradise Valley 3 LR

Park, Mike 8 HF

Park rustic architecture 7 RC

Peers, Roi 3.2 TTT

Peninsula Crest Trail 9 LV

Perkins 
Canyon PC guide
David and Susan 2 PC

Peterson, Brian 5 HF, 8 HF

Phacelia, Mount Diablo 5 HF, 9 HF

Phainopepla 3 RV

Pigs, feral 8 IMD, 13 FT

Pine
Coulter 12 BDM, 2 IMD, 10 MC, 2 (part 2) PTP, 4 HF, 7 FT
Creek 2 CP
gray or foothill 12 BDM, 10 CP, 1 GL,10 MC, 6 PC, 2 (p 2) PTP, 4 HF, 7 FT 
knobcone 10 CP, 12 CP, 2.3 TTT, 4 HF

Pinole (seed cakes) 6 RV

Pioneer Pond 8 BDM

Pittsburg 
development threats 13 BDM
Historical Society 2 BDM

Plate tectonics 2 GMB, 5 GMB, 1 TTT, 1.1 TTT, 3.1 TTT

Poison oak 7 IMD, 2 FT

Poppy
California 4 (part 2) PTP
fire 5 HF

Powell, William “Doc” Ryder 8 PC, 9 PC, 6 RC

Prehistory 2 LV

Prospectors Gap 6 GL

Pyramid Peak 3 MC

Railroad
Ranch 6 RC
barons 6 RC

Rancho Paraiso 4 LR

Ransom
Leander 14 CP, 5 GL
Point 5 GL 

Rattlesnakes 5 IMD, 2.1 RV, 8 RV

Recreation
activities 15 IMD
tourism, history 13 IMD

Redwoods, coast 7 FT

Restoration
Bayberry Pond 1.1 LR
Black Diamond Mines Intro BDM, 
Galindo Creek 7 LR
general philosophy 7 GL
oak habitat 9 LR

Rhine, Charles 3 (part 1) PTP

Rhyolite 3 PC

Rock City
geology 2.6 TTT
history 13 IMD
natural, cultural history RC guide 

Rock wren 2 RV

Rolph, “Sunny Jim” 14 IMS, 10 RC

Rose Hill Cemetery 3 BDM 

Round Top 5 (part 1) PTP

Round Valley RV guide
Group Camp 7 RV

Royal Horticultural Society 7 (part 2) PTP

Saber-toothed cat 7 GMB, 2.10 TTT

Sage
black 9 (part 2) PTP
pitcher 5 MC

Sagebrush
California 5 MC, 9 (part 2) PTP

Salamander, tiger 11 LV, 8 RV

Salmon, in Marsh Creek 2 RV

San Andreas Fault 8 GMB, 3 PC

San Pablo Embayment 2.9 TTT

Sand Creek development 13 BDM

Sandstone
Briones 2.9 TTT
Domengine 1 BDM, 4 RC, 2.3 TTT
Graywacke 2 GMB, 4 GMB, 1.1 TTT, 1.5 TTT
Markley 1 BDM
Neroly 2.10 TTT

Sanicle, rock 2 HF, 9 HF

Save Mount Diablo
founding 14 IMD, 7 HF
land acquisitions 13 BDM, 14 IMD, 4 LR, 3 LR, 7 LR, 9 HF

Scarlet pimpernel 15 (part 2) PTP

Schlemihl, Peter 4 (part 2) PTP 

Second Saturday Trail Group 3 FT

Sentinel Rock 4 RC

Serpentine 4 PC, 2 (part 1) PTP, 1.2 TTT

Sheep grazing 5 FT

Shell “hash” 2.10 TTT

Shooting Star
white, purple 10 BDM

Sibley Regional Park 5 (part 1) PTP

Sidney Flat Intro BDM

Sierra Nevada
geologic link to Mt. Diablo 7 GMB

Skyline to Sea Trail
(proposed) 6 BDM 

Sleepy catchfly (Silene) 5 HF

Slickensides 9 GMB

Smith, Jedediah 4 MC

Snapdragon, Kellogg’s climbing 5 HF

Soap plant (aka soaproot) 3 CP, 7 MC, 5 (part 2 PTP)

Somersville 1 BDM

South Gate Road 9 RC

Southern Pacific Railroad 8 PC

Squirrel, ground 3 IMD, 7 LV, 1.2 MC, 2.1 RV

Staircase Trail 2.3 TTT

Standard Diablo Tower 8 GL

Stargazing 15 IMD

Starr, Oscar 8 LV

Stewartville
historic town 9 BDM
Saddle (pass) 14 BDM

Stoves, Diablo 7 RC

Stump spouting (after fire) 4 HF

Sulfur Spring 4 CP

Summit 
facilities 10 GL, 10 GMB
Trail 10 GL

Sunflower 
Mount Diablo
(aka Diablo Helianthela) 5 BDM, 7 & 14 CP, 3.1 LR
narrow-leaf bush 1.1 MC

Suñol Adobe 6 LV

Suñol, Juan, Lorenzo, Maria 6 LV

Sunset Picnic Area (geology) 1.7 TTT

Survey Point 2 IMD

Sycamore 
Canyon 6 CP
Creek 2 CP, 2.8 TTT
tree 6 CP

Tafoni 2.6 TTT

Tarantulas 6 IMD, 10 MC, 6 PC

Tarplant
big 7.1 LR
hayfield 9 HF
Heermann’s 9 HF
Kellogg’s 5 BDM

Thrasher, California 8 CP 

Toad, California 2 BDM

Torre del Sol 13 IMD

Tourism, early 13 IMD

Towhee, spotted 8 CP, 3 GL

Toyon 13 (part 2) PTP

Trail Through Time 4 CP, TTT guide 
construction of 3.2 TTT

Trash Removal Project 5 FT

Turkey, wild 8 LR

Turtle, western pond 8 BDM

Twin Peaks 9 MC, PTP guide, 4 (part 1) PTP, 5 (part 1) PTP

Up and Down California 11 IMD

Unconformities 2.2 TTT, 2.8 TTT

Valley of the Cowboys 5 LV

Vancouver, George 2 RC

Vasco Adobe 8 LV

Views from top of Mount Diablo
what you can see 6 GMB, 2 IMD, 11 IMD
distance controversy 11 IMD

Volcanic domes 2 PC, 3 PC

Vulture
turkey 15 BDM, 6 GMD, 7 LV

Walnut Creek Open Space
Foundation 9 LR

Warbler, orange-crowned 11 BDM

Wasserman 
Trail 13 FT
Franz & Sarah 13 FT

Whitney 
Josiah 3.0 TTT
Survey 11 IMD, 3 MC

Whipsnake, Alameda 7 & “Extra” CP, 6 LR

Wild cucumber 14 (part 2) PTP

Wild Oat Canyon 11 FT

Wildflowers, general “Extra” MC, 13 FT

Wildlife , general 3 IMD, 4 IMD, 5 IMD, 6 IMD

Will, Kip 3 HF

Willow 8 MC

Wind caves
formation of 3 RC, 2.6 TTT

Wind power 10 LV 

Woodpecker
Acorn 1.1 MC
Lewis’s 9 LV
Nuttall’s 3 CP

Wren, Bewick’s 8 CP

Wrentit 8 CP

Wright, Georgiana 11 FT

Yamane, Linda 7 IMD

Yarrow 10 (part 2) PTP

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