Geologic Map of the Maysville Quadrangle, Chaffee County, Colorado

interpreted to be Manitou Dolomite () or possibly Leadville Limestone (). Local finescale
bedding laminations (fig. 26) in the northern part of the body have variable strike
and generally steep dips (64° to vertical), suggesting the carbonates are folded.
Brecciation or shattering of this Paleozoic remnant is not significant. Minor karst-like
carbonate breccias are localized and are probably related to fault structures.
A small, elongated sliver of Paleozoic limestone is present in the gulch about
1,200 ft northeast of the largest outlier, just described. The sliver consists of a 600 ft long
and less than 50 ft wide zone of concentrated float and minor subcrop of light-gray, very
fine-grained limestone along the west side of the gulch. A N20°E-trending fault is
postulated along this gulch and the sliver of limestone is interpreted to be a slice of
Paleozoic rocks that was caught up in the fault zone.
Figure 26. Bedding laminations in Paleozoic limestone outlier about 6,000 ft
west-southwest of Maysville.
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