Monument Rocks
by Mark Miller
Grasslands
Keywords: geology, formation, erosion, Cretaceous Period, national natural landmark, prairie, grassland, Kansas, historical, monument, window, keyhole, arch, chalk, limestone, sedimentary, plains
The late afternoon light illumnates the keyhole window in the chalk formations at Monument Rocks, Kansas. Wind and water erosion have carved these formations from the Niobrara Chalk, the floor of a vast inland sea present during the Cretaceous Period.
Image Reference: GS-KS112Image Format: 35mm slideImage Crop: Full FrameDigital Enhancement: NoneModel Release: NAProperty Release: NACaptive: NA
