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Publication Extents

Not all publications have extents, not all extents are completely accurate
Map Showing Areas Containing Swelling Clay in the Morrison Quadrangle, Jefferson County, Colorado
Glenn R. Scott
1972, IMAP 790-C
Formations that contain clays having swelling pressures higher than 2,500 pounds per square foot (as measured by the Potential Volume Change meter) are listed in order of decreasing swelling pressure: Denver Formation, Pierre Shale, Laramie Formation, Green Mountain Conglomerate, Fox Hills Sandstone, and Arapahoe Formation. Some landslides derived from these...
Map showing length of freeze-free season in the Salina quadrangle, Utah
1972, IMAP 591-E
In general, long freeze-free periods occur at low elevations, and short freeze-free periods occur at high elevations. But some valley floors have shorter freeze-free seasons than the glancing foothills because air cooled at high elevations flows downward and is trapped in the valleys. This temperature pattern occurs in the western...
Geologic map of the Tycho Quadrangle of the Moon
H. A. Pohn
1972, IMAP 713
The Tycho quadrangle is centrally located in the southern half of the earthside hemisphere of the Moon. The area is characterized by a high density of craters, the largest of which <span...