Joshua Tree Trivia Quiz Questions and Answers

green trees on brown field under blue sky during daytime

1: What is the name of the plant species that Joshua Tree National Park is named after?

A: Yucca brevifolia

B: Opuntia bigelovii

C: Washingtonia filifera

D: Quercus john-tuckeri

Correct Answer: A

Explanation: The park is named after the Joshua trees (Yucca brevifolia) native to the Mojave Desert.

2: When was Joshua Tree redesignated as a national park?

A: 1936

B: 1950

C: 1994

D: 2019

Correct Answer: C

Explanation: Joshua Tree was redesignated as a national park in 1994 when the U.S. Congress passed the California Desert Protection Act.

3: Which two counties does Joshua Tree National Park span?

A: Los Angeles and Kern

B: San Bernardino and Riverside

C: Orange and San Diego

D: Ventura and Contra Costa

Correct Answer: B

Explanation: The park straddles San Bernardino and Riverside Counties.

4: In what year was Joshua Tree originally declared a national monument?

A: 1950

B: 1906

C: 1936

D: 1980

Correct Answer: C

Explanation: Joshua Tree National Park was originally declared a national monument in 1936.

5: How many acres does Joshua Tree National Park encompass?

A: 123,456 acres

B: 500,000 acres

C: 795,156 acres

D: 1,000,000 acres

Correct Answer: C

Explanation: The park encompasses a total of 795,156 acres.

6: What two deserts are part of Joshua Tree National Park?

A: Sonoran and Great Basin

B: Black Rock Desert and Chihuahuan Desert

C: Mojave Desert and Colorado Desert

D: Painted Desert and High Desert

Correct Answer: C

Explanation: The park includes parts of the Mojave Desert and the Colorado Desert.

7: Which mountain range traverses the southwest edge of Joshua Tree National Park?

A: Santa Rosa Mountains

B: San Jacinto Mountains

C: Little San Bernardino Mountains

D: San Gabriel Mountains

Correct Answer: C

Explanation: The Little San Bernardino Mountains traverse the southwest edge of the park.

8: Which indigenous people lived in small villages near the Oasis of Mara?

A: Yanomami

B: Ojibwe

C: Serrano, Cahuilla, and Chemehuevi

D: Iroquois

Correct Answer: C

Explanation: The Serrano, Cahuilla, and Chemehuevi peoples lived in small villages in or near water, particularly the Oasis of Mara.

9: Which explorer made the first European sightings of Joshua trees in 1772?

A: Christopher Columbus

B: Pedro Fages

C: Vasco Núñez de Balboa

D: Hernán Cortés

Correct Answer: B

Explanation: Pedro Fages made the first European sightings of Joshua trees in 1772.

10: What type of illegal activity were James B. and William S. McHaney involved in during the 19th century near the Oasis of Mara?

A: Bootlegging

B: Gold mining

C: Cattle rustling

D: Logging

Correct Answer: C

Explanation: A gang of cattle rustlers led by the McHaney brothers hid stolen cattle near the Oasis of Mara.

11: What is Barker Dam known for?

A: Being a volcanic formation

B: Historical gold mining site

C: Original water source storage built by cattlemen

D: Largest Joshua tree forest

Correct Answer: C

Explanation: Barker Dam was built by a miner and cattleman for water storage.

12: What was the most successful mine in Joshua Tree and what did it produce?

A: Dutchman Mine – Coal

B: Lost Horse Mine – Gold and Silver

C: Sierra Madre Mine – Diamonds

D: Eureka Mine – Copper

Correct Answer: B

Explanation: The Lost Horse Mine produced gold and silver worth about $5 million in today’s currency.

13: What year did Franklin D. Roosevelt designate Joshua Tree a national monument?

A: 1936

B: 1950

C: 1994

D: 2019

Correct Answer: A

Explanation: In 1936, Roosevelt established Joshua Tree National Monument.

14: How many visitors did Joshua Tree National Park have in 2022?

A: 1 million

B: 2 million

C: 3 million

D: 4 million

Correct Answer: C

Explanation: Joshua Tree National Park had 3,058,294 visitors in 2022.

15: Which acts of Congress led to the resizing and re-designation of the park in 1994?

A: U.S. Wilderness Act

B: California Desert Protection Act

C: Antiquities Act

D: John D. Dingell, Jr. Conservation Act

Correct Answer: B

Explanation: The California Desert Protection Act resized and redesignated the park in 1994.

16: What plant is the primary habitat indicator of the higher Mojave Desert within the park?

A: Juniper

B: Ocotillo

C: Joshua Tree

D: Desert Ironwood

Correct Answer: C

Explanation: The Joshua tree is the primary habitat indicator of the higher Mojave Desert.

17: What factor largely determines the characteristics of the park’s desert ecosystems?

A: Soil composition

B: Air pollution levels

C: Elevation

D: Park policies

Correct Answer: C

Explanation: The characteristics of the park’s desert ecosystems are determined primarily by elevation.

18: How many campsites providing water and flush toilets are available in Joshua Tree National Park?

A: 1

B: 2

C: 3

D: 4

Correct Answer: B

Explanation: Black Rock Campground and Cottonwood Campground provide water and flush toilets.

19: Which trail offers views of the Coachella Valley, the Salton Sea, and other major landmarks?

A: Hidden Valley Trail

B: Boy Scout Trail

C: Keys View Trail

D: Fortynine Palms Oasis Trail

Correct Answer: C

Explanation: Keys View Trail offers views of the Coachella Valley, the Salton Sea, and other landmarks.

20: Which part of the USGS Climate Classification system does Joshua Tree largely fall under?

A: Tropical Rainforest

B: Tundra

C: Hot Desert

D: Temperate Forest

Correct Answer: C

Explanation: Joshua Tree National Park has a hot desert climate according to the Köppen climate classification system.

21: How has the climate at Joshua Tree changed from 1895 to 2016?

A: Increased precipitation

B: Decreased temperatures

C: Increased temperatures and decreased precipitation

D: Stable climatic conditions

Correct Answer: C

Explanation: There has been a drop in annual precipitation by 39% and an increase in temperature by 3 °F.

22: What is the predicted percentage loss of suitable Joshua tree habitat by 2099 under high emission scenarios?

A: 10%

B: 30%

C: 50%

D: 80%

Correct Answer: D

Explanation: It’s predicted that 80% of suitable Joshua tree habitat could be lost under high emission scenarios by 2099.

23: How many bird species have been documented in Joshua Tree as of a 2006 USGS bird checklist?

A: 159

B: 239

C: 319

D: 399

Correct Answer: B

Explanation: A USGS bird checklist from 2006 contained 239 bird species in the park.

24: What nighttime phenomenon is Joshua Tree National Park particularly noted for?

A: Active volcanoes

B: Meteor showers

C: Dark night skies for stargazing

D: Aurora borealis

Correct Answer: C

Explanation: Joshua Tree is noted for its naturally dark night skies, making it popular for stargazing.

25: Which animal is considered a threatened species within the park?

A: Desert Canary

B: Mountain Lion

C: Desert Tortoise

D: Black Bear

Correct Answer: C

Explanation: The desert tortoise is a threatened reptile species that inhabits the park.

26: What are “tanks” mentioned in relation to cattle grazing history?

A: Natural lakes

B: Small ponds

C: Dug wells and rainwater catchments

D: Mineral hot springs

Correct Answer: C

Explanation: “Tanks” refer to rainwater catchments and dug wells created by ranchers.

27: How many established campgrounds are available in Joshua Tree National Park?

A: Seven

B: Eight

C: Nine

D: Ten

Correct Answer: C

Explanation: There are nine established campgrounds in the park.

28: What recreational activity is Joshua Tree popular for, especially during winter?

A: Ice fishing

B: Skiing

C: Rock climbing

D: Surfing

Correct Answer: C

Explanation: The park is popular for rock climbing, particularly in the winter.

29: Which of the following is a major invasive grass contributing to fire risks in Joshua Tree?

A: Bluegrass

B: Red fescue

C: Cheat grass

D: Tall fescue

Correct Answer: C

Explanation: Cheat grass is an invasive species that contributes to worsening wildfires in the park.

30: What is the plant hardiness zone at the Cottonwood Visitor Center?

A: 4a

B: 6b

C: 8b

D: 10a

Correct Answer: C

Explanation: The plant hardiness zone at the Cottonwood Visitor Center is 8b.

31: What is the approximate temperature difference forecasted for the park by 2099?

A: 2°F increase

B: 5°F decrease

C: 8°F increase

D: 12°F decrease

Correct Answer: C

Explanation: It is forecasted that the park will increase in temperature by 8°F by 2099.

32: What is a “two-stamp mill” referred to in the mining history of Joshua Tree?

A: A water mill for irrigation

B: A device for grinding grains

C: A machine for crushing ore

D: A timekeeping device

Correct Answer: C

Explanation: A two-stamp mill is a machine used for crushing ore, used historically in the park’s mining activities.

33: Which specific area is noted for its naturally formed cactus gardens?

A: Lookout Point

B: Hidden Valley

C: Cholla Cactus Garden

D: Fortynine Palms Oasis

Correct Answer: C

Explanation: Some areas with dense cacti are known as Cholla Cactus Gardens.

34: What’s the average precipitation amount recorded for Joshua Tree National Park?

A: 1.0 inches

B: 3.2 inches

C: 5.45 inches

D: 7.6 inches

Correct Answer: C

Explanation: Average precipitation for Joshua Tree National Park is 5.45 inches annually.

35: Which entity governs Joshua Tree National Park?

A: U.S. Forest Service

B: National Park Service

C: Bureau of Land Management

D: California State Parks

Correct Answer: B

Explanation: The National Park Service governs Joshua Tree National Park.

36: Who helped to establish Joshua Tree National Monument in 1936?

A: Minerva Hoyt

B: John Muir

C: Theodore Roosevelt

D: Ansel Adams

Correct Answer: A

Explanation: Minerva Hoyt persuaded the state and federal governments to establish Joshua Tree National Monument in 1936.

37: Which precious metals were primarily extracted from the Lost Horse Mine?

A: Gold and copper

B: Silver and zinc

C: Gold and silver

D: Copper and iron

Correct Answer: C

Explanation: The Lost Horse Mine primarily produced gold and silver.

38: What is unique about keys view within Joshua Tree National Park?

A: Most prominent sand dunes

B: Highest number of Joshua trees in a single location

C: Provides extensive views of Coachella Valley and other regions

D: Largest freshwater lake in the park

Correct Answer: C

Explanation: Keys View provides panoramic views of the Coachella Valley and other major landmarks.

39: Which invasive grass was introduced to the park in the 1990s and poses competition to native grasses?

A: Bermuda Grass

B: Fountain Grass

C: Buffalo Grass

D: Switchgrass

Correct Answer: B

Explanation: Fountain grass was introduced in the 1990s and competes with native grasses for resources.

40: What mountain range’s fault system affects Joshua Tree National Park?

A: Rocky Mountains

B: Cascade Range

C: Appalachians

D: San Andreas Fault System

Correct Answer: D

Explanation: The San Andreas Fault system affects Joshua Tree National Park.

41: What is the purpose of the Wall Street Mill within the park?

A: Irrigation

B: Ore Processing

C: Rock Climbing

D: Botanical Research

Correct Answer: B

Explanation: The Wall Street Mill was used for ore processing.

42: How has human development affected Joshua Tree forests?

A: Increased Joshua tree growth

B: Made the environment less resistant to change

C: Decreasing animal diversity

D: Improving plant health

Correct Answer: B

Explanation: Human development through activities like cattle grazing has made the environment less resistant to changes, affecting Joshua tree growth.

43: What is a significant feature of the Wonderland of Rocks?

A: Large freshwater lakes

B: Extensive cave systems

C: Hills of bare rock broken into boulders

D: Tropical rainforest

Correct Answer: C

Explanation: The Wonderland of Rocks features hills of bare rock, usually broken up into loose boulders.

44: Which ranger-led activity can you participate in to learn about the region’s geology?

A: Bird Watching Tour

B: Night Sky Observatory

C: Geology Tour Road

D: Botanical Walk

Correct Answer: C

Explanation: Visitors can take a self-guided tour along the Geology Tour Road to learn about the region’s geology.

45: What percentage of bird species has declined according to studies conducted in Joshua Tree?

A: 10%

B: 25%

C: 43%

D: 60%

Correct Answer: C

Explanation: Bird species have declined 43% according to studies conducted.

46: What is Joshua Tree’s ranking on the Bortle scale for sky darkness in its eastern regions?

A: Class 1

B: Class 2

C: Class 4

D: Class 5

Correct Answer: B

Explanation: The easternmost parts of the park have a sky darkness rating of class 2 on the Bortle scale.

47: What kind of camping does Joshua Tree National Park offer in undeveloped areas?

A: Glamping

B: Car camping

C: Backcountry camping

D: RV camping

Correct Answer: C

Explanation: Joshua Tree offers backcountry camping with specific regulations.

48: What reptile is at risk and has adapted well to arid conditions in Joshua Tree?

A: Komodo Dragon

B: Gila Monster

C: Desert Tortoise

D: Iguana

Correct Answer: C

Explanation: The desert tortoise is well adapted to the arid conditions and is at risk.

49: What animal is frequently heard and known for its distinctive call in the park?

A: Coyotes

B: Gambel’s Quail

C: Mountain Lions

D: Elephants

Correct Answer: B

Explanation: The call of Gambel’s quail is frequently heard in the park.

50: What geological term describes the prominent outcrops found in Joshua Tree?

A: Inselbergs

B: Buttes

C: Plateaus

D: Mesas

Correct Answer: A

Explanation: The prominent rock outcrops in Joshua Tree are known as inselbergs.

51: What activity did early Spanish explorers engage in that led to discovering Joshua trees?

A: Searching for treasure

B: Hunting game

C: Pursuing native converts

D: Establishing new settlements

Correct Answer: C

Explanation: Early Spanish explorers were pursuing native converts who had run away from a mission in San Diego.

52: Which plant native to California can be found naturally in five oases within the park?

A: California Fan Palm

B: Coastal Redwood

C: Blue Oak

D: Manzanita

Correct Answer: A

Explanation: The California fan palm occurs naturally in five oases within the park.

53: What monitoring entity tracks bird species in the park?

A: National Weather Service

B: US Geological Survey (USGS)

C: California National Heritage Program

D: Park Illuminators

Correct Answer: B

Explanation: The US Geological Survey (USGS) tracks bird species in the park.

54: What era do the oldest rocks in Joshua Tree National Park date back to?

A: Paleozoic Era

B: Mesozoic Era

C: Precambrian Era

D: Cenozoic Era

Correct Answer: C

Explanation: The park’s oldest rocks, including Pinto Gneiss, date back to the Precambrian Era, about 1.7 billion years old.

55: Which animal is particularly abundant during the winter season in the park?

A: Squirrels

B: Birds

C: Spiders

D: Frogs

Correct Answer: B

Explanation: Winter is the time of the greatest bird concentrations in the park.

56: What are the rounded boulder formations in Joshua Tree attributed to?

A: Volcanic eruptions

B: Flash floods and groundwater erosion

C: Glacial movements

D: Meteor impacts

Correct Answer: B

Explanation: The rounded boulder formations are partly owing to groundwater erosion and flash floods.

57: Which species is responsible for pollinating the Joshua Tree?

A: Monarch Butterfly

B: Yucca Moth

C: Honeybee

D: Hummingbird

Correct Answer: B

Explanation: The Yucca moth is responsible for pollinating the Joshua trees.

58: Who purchased the Wall Street Mill and moved it to their ranch for ore processing?

A: C.O. Barker

B: J.D. Ryan

C: Johnny Lang

D: William “Bill” Keys

Correct Answer: D

Explanation: William “Bill” Keys bought the Wall Street Mill and moved it to his ranch to process ore.

59: What type of climate does the park have according to the Köppen classification?

A: Humid continental

B: Oceanic

C: Hot desert

D: Mediterranean

Correct Answer: C

Explanation: Joshua Tree National Park has a hot desert climate according to the Köppen climate classification system.

60: What geological process formed the distinctive monzogranite rocks in the park?

A: Glaciation

B: Sedimentation

C: Volcanic activity and tectonic plate movements

D: Deep-sea erosion

Correct Answer: C

Explanation: The distinctive monzogranite rocks, common in the Wonderland of Rocks, were formed by tectonic plate movements and volcanic activity.

Source:

https://en.wikipedia.org/wiki/Joshua_Tree_National_Park

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