Big Rock (glacial erratic)

Off Hwy 7, Okotoks, Alberta


+1 403-700-4343



Description

Big Rock is a 16,500-tonne boulder that is about the size of a two-storey house and lies on the otherwise flat, relatively featureless, surface of the Canadian Prairies in Alberta. It is part of the 930km Foothills Erratics Train of typically angular boulders of distinctive quartzite and pebbly quartzite.This massive angular boulder, which is broken into two main pieces, measures about 135by and is 30ft high. It consists of thick-bedded, micaceous, feldspathic quartzite that is light grey, pink, to purplish. Besides having been extensively fractured by frost action, it is unweathered. Big Rock lies about 5mi west of the town of Okotoks, Alberta, Canada, 11mi south of Calgary in the SE. 1/4 of Sec. 21, Township 20, Range 1, West 5th Meridian.Big Rock is a glacial erratic that is part of a 580mi long, narrow, linear scatter of thousands of distinctive quartzite and pebbly quartzite glacial erratics between 1ft and 135ft in length. This linear scatter of distinctive quartzite glacial erratics is known as the Foothills Erratics Train. The Foothills Erratics Train extends along the eastern flanks of the Rocky Mountains of Alberta and northern Montana to the International Border. The boulders and smaller gravel, which comprises the Foothills Erratics Train, consist of Lower Cambrian shallow marine quartzite and conglomeratic quartzite, which occurs only within the Gog Group and is found in the Athabasca River Valley of central western Alberta. Big Rock is the largest erratic within the Foothills Erratics Train. Lying on prairie to the east of the Rocky Mountains and like all the larger erratics, it is visible for a considerable distance across the prairie and likely served as a prominent landmark for Indigenous people.

Places Nearby


Calgary / Christiansen Field
Calgary, Alberta
Airport

Alternative Restoration & Collision Centre
Range Road 15, Calgary, Alberta
Automotive, Aircraft & Boat

Unofficial: Jiffy Lube Black Diamond
400-1st avenue, Black Diamond, Alberta T0L 0H0
Automotive, Aircraft, Boat

Canyon Rigging
1 48172-450 Ave W, Okotoks, Alberta T1S 0A1
Business Service

Love Those Kids Dayhome
Okotoks, Alberta xxx
Child Care Service

Spring Valley Church
Nine km south of Hwy 22x on Spruce Meadows Way or 64th St., Calgary, Alberta
Christian Church

Big Rock (berg i Kanada, Alberta)

City, Landmark & Historical Place

Village Lane Dental Centre
700 Village Lane # 2, Okotoks, Alberta T1S1Z6
Dentist & Dental Office
Diamond Valley Dental
402 Centre Ave W # 18, Black Diamond, Alberta T0L0H0
Dentist & Dental Office

Wild Power Alberta
Town of Okotoks, Okotoks, Alberta T1S 1J1
Electrician, Contractor

Black Diamond Fire Department
Calgary, Alberta T0L
Fire Station

Okotoks Country Florist
92-Elizabeth street, Okotoks, Alberta T1S 1B4
Florist, Shopping & Retail

Cattleboyz BBQ Sauce
314 - 14 - 900 Village Lane, Okotoks, Alberta T1S1Z6
Food & Beverage Company

Sirocco Golf Course
Calgary, Alberta T2J 5G5
Golf Course & Country Club

Red Deer Lake Meats
Calgary, Alberta
Grocery Store

Youniquely You By Crystal
Okotoks, Alberta
Cosmetics Store

True North Lodge
96057 265 ave W, Calgary, Alberta t2j5g5
Hotel & Lodging

Diamond Valley Gravel Sales
220A 3rd St, Black Diamond, Alberta T0L 0H0
Jewelry & Watches Store

Okotoks Erratic
Okotoks, Alberta T0L 0H0
Landmark & Historical Place, Historical Place
The Big Rock

Landmark & Historical Place, Historical Place
Dutch Creek
Edmonton, Alberta
Landmark & Historical Place

RBC Mortgage Specialist, Delilah Miller
102-3rd Ave W, High River, Alberta T1V 1M4
Loan Service, Finance Company, Business Service

Higher Trails Equine

Local Business
Higher Trails Ranch

Public & Government Services, Farm, Mountain
Tongue Creek Road
Calgary, Alberta
Local Business
Blackdiamond Ablerta
Black Diamond, Alberta
Home
Trinity Mennonite Church
RR 1 Site 17 Box 21 De Winton, AB T0L 0X0, Okotoks, Alberta T0L
Public & Government Services, Christian Church
Foothills Highland Games
Okotoks, Alberta
Local Business
Serenity Bridge
Nanaimo, British Columbia
Psychic, Alternative & Holistic Health Service
Okotoks Big Rock

Local Business
Bar D Ranch

Local Business
Menno's Appliance Repairs Ltd
Okotoks, Alberta T1S 1Y1
Appliances
The Equine Pathway
258012 48 St W, T0L0X0
Local Business

Brow Babe YYC
4th Street SW, Calgary, Alberta
Makeup Artist, Skin Care Service

Think PInk
1 Suntree Lane, Okotoks, Alberta T1S1C3
Alternative & Holistic Health Service
Willowridge Massage Therapy
208 Willowridge Manor SW, Black Diamond, Alberta T0L0H0
Medical & Health

Purple Peak Performance Horses
MD 322129 80 Street West, Okotoks, Alberta T1S 1A2
Pet Service, Farm
Chinook Winds Equestrian
Okotoks, Alberta
Pet Service, Sports & Fitness Instruction, Pet
Catnaps Boarding Exclusively for Cats
338072 40 St. West, Okotoks, Alberta T0L0X0
Pet Sitter

Barnone Ranches
237 Bar None Ranch Road, Okotoks, Alberta 77351
Religious Center

Sheep River Crossing
402 Centre Ave. West, Black Diamond, Alberta T0l 0H0
Shopping & Retail

Krista Dunseith Independent Arbonne Consultant
Okotoks, Alberta
Skin Care Service

Ranahan Polocrosse Club
Okotoks, Alberta
Sports Club

Rocky Mountain Show Jumping
226131 64 st w foothills No. 31 AB, Calgary, Alberta T2J 5G5
Stadium, Arena & Sports Venue, Residence

Unofficial: Little Black Dress Consignment
126 Centre Ave. W., Black Diamond, Alberta
Thrift or Consignment Store, Fashion

Privacy Policy