Smoky Hill Chalk Member, Paleontological formation in Western Kansas and Colorado, United States.
The Smoky Hill Chalk Member extends through multiple states, characterized by soft chalk layers containing bentonite, jarosite, pyrite, and chert deposits.
During the Late Cretaceous period, approximately 80 million years ago, this area was submerged beneath the Western Interior Sea, accumulating marine deposits.
Scientists and researchers frequently study the chalk formations, which contain numerous vertebrate and invertebrate fossils displayed in museums worldwide.
Monument Rocks and Castle Rock provide public access points for visitors to examine the geological features and study fossil specimens.
The chalk deposits preserve complete skeletons of marine creatures, including a Xiphactinus containing another fish, Gillicus arcuatus, within its body cavity.
Location: Colorado
Location: Kansas
Location: Nebraska
Location: South Dakota
Part of: Niobrara Formation
GPS coordinates: 38.80250,-100.94250
Latest update: March 11, 2025 15:37
Monument Rocks
15.7 km
Little Jerusalem Badlands State Park
0 m
Lake Scott State Park
14.3 km
Cottonwood Ranch
90.6 km
English Lutheran Church
30.3 km
El Quartelejo Ruins
14.1 km
Mary Seaman Ennis House
90 km
Grainfield Opera House
53.8 km
Oakley High School Stadium
37.4 km
Pond Creek Station
56.8 km
Goodland City Library
90 km
Thomas County Courthouse
66.6 km
Beamer Barn
38.6 km
George Washington Carver Homestead Site
77.5 km
Greeley County Courthouse
79.3 km
Clark–Robidoux House
57.9 km
Lane County Community High School
55.1 km
Shafer Barn
78.7 km
Lipp Barn
76.2 km
Alexander & Anna Schwartz Farm
70.3 km
William B. and Julia Washington House
50.9 km
Oxley Barn
69.7 km
Old Logan County Courthouse
23.9 km
Bungalow Historic District
92.5 km
Collyer Downtown Historic District
76.1 km
Fick Fossil and History Museum
36.9 km
World's Largest Easel
88.9 km
Giant van Gogh Painting
88.8 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes