A
abrasion: 30
Adair, John: 6
“Age of Mammals”: 27
alabaster: 17
ancient man in Palo Duro Canyon: 3
anhydrite: 18
anticlines: 18
Apaches: 1, 3
aquifer: 26
Arapahos: 3
Archeozoic rocks: 13
B
“blow sand”: 28
bottom load: 29
Brazos River: 8
_Buettneria_: 22, 23, 24
C
calcite: 22
caliche: 26
camels: 27
camping and picnicking: 43
Canyon, Texas: 45
Capitol Peak: 1, 18, 19, 31, 40, 42
Carboniferous Period: 16
Catarina Cave: 19, 37, 38
chemical weathering: 30
chert: 26
Cheyennes: 3
Civilian Conservation Corps: 8
Colorado River: 8
_comancheros_: 6, 46
Comanches: 1, 3
concretions: 22
conglomerate: 24
coprolites: 22
Coronado, Francisco Vasquez de: 3
Coronado Lodge: 1, 21, 26, 33, 34
“Cow Cabins”: 41
cross-bedding: 19, 20
cross-stratification: 19
D
decomposition: 30
Devil’s Slide: 19, 40, 44
Devil’s Tombstone: 40
differential erosion: 31, 41
disintegration: 30
dugout, Col. Charles Goodnight’s: 39, 40
E
earth history: 10-12
Eastern Caprock Escarpment: 8
erosion, differential: 31, 41
F
flash floods: 29
fluorescence: 26
fluvial sediments: 24
Fortress Cliff: 1, 40, 42
fossils: 10
frost wedging: 30
G
geodes: 22
geologic column: 12
geologic time scale: 11, 12
geomorphologist: 29
Goodnight, Colonel Charles: 1, 39, 40
gypsum: 17
H
Harper, Mrs. Ples: 35
hematite: 22
Hester, W. A.: 1
High Plains: 8
hiking: 43
history of park: 3-8
“hoodoos”: 23, 31
Horn, Ron: 35
horseback riding: 43
horses: 27
hydration: 18, 31
hydraulic action: 30
I
Ice Age: 3
igneous rocks: 10
Indian campground: 39
Indians of the Plains: 3
J
JA Ranch: 6
K
Kiowas: 1, 3
L
Lighthouse, The: 23, 25, 39, 41
Little Sunday Canyon: 39
Llano Estacado: 8
M
Mackenzie, Colonel Ranald: 3
mammals: 27
Marcy, Captain R. B.: 6
mass-wasting: 31
mastodon, shovel-jawed: 27
mechanical weathering: 30
metamorphic rocks: 10
mortar hole: 25
O
Observation Point: 33
Ogallala Formation: 21, 23-27, 42
opal: 26
oxidation: 31
P
Paleozoic Era: 13
Palo Duro Canyon State Park: 7, 14, 45
Panhandle-Plains Historical Museum: 2, 27, 45-46
Park Entrance: 33
park history: 3-8
Park Road 5: 33, 38, 50
Parker, Chief Quanah: 7
Pecos River: 8
pedestal rock: 25
petrified wood: 22
photography: 43
phytosaurs: 22
picnicking and camping: 43
Pioneer Amphitheatre: 33-34
Plains Indians: 3
Pleistocene rocks: 28
time: 3
Pliocene Epoch: 27
Prairie Dog Town Fork of the Red River: 1, 29, 39
Precambrian rocks: 13
principle of superposition: 13
Proterozoic rocks: 13
psilomelane: 22
Q
Quartermaster Formation: 12, 17-19, 20, 21, 31, 36, 37, 42, 44
R
Red River: 8, 29
reduction halos: 19, 20
ripple marks: 19
Rock Garden, The: 23, 40, 43
Rocky Mountains: 24
S
saber-tooth cat: 27
Sad Monkey, Texas: 36
Railroad: 6, 20, 23, 35
Santana’s Face: 23, 37, 38
satin spar: 17
Scenic Drive, The: 33
sedimentary rocks: 10
sediments: 10
selenite: 17
septaria: 22
septarian concretions: 22
shovel-jawed mastodon: 27
Sky Ride, The: 37
Sleeping Indian: 40, 42
sloths: 27
siliceous rocks: 27
solution: 29
Spanish Skirts: 19, 37
suffosian: 19
Sunday Canyon: 40
superposition, principle of: 13
suspension: 29
synclines: 18
T
talus: 31
talus slopes: 31
Tecovas Formation: 19-22, 36, 37, 42, 44
Texas Panhandle: 9
Texas Panhandle Heritage Foundation, Inc.: 35
Texas Parks and Wildlife Department: 2
Texas-Santa Fe Expedition: 6
Timber Mesa: 1, 23, 37, 38
time scale, geologic: 11, 12
tortoises: 27
Triassic Peak: 1, 35
Trujillo Formation: 20, 21, 22-23, 36, 38, 42, 43
Turnaround, The: 1, 41, 44
U
unconformities: 21
W
water crossings: 39
weathering: 30
West Texas State University: 45
Wolfin, Charles A.: 1