Limestone - A sedimentary rock consisting mostly of calcium carbonate ... Common activities include hiking, snow skiing, mountain biking, birding, and a unique program conducted by Miami University's ...

Mudstone, shale, and limestone are examples of sedimentary rock likely to contain fossils ... Reading the layers is complicated by the fact that as continents move and mountains rise, the layers are ...

The wall is 22 miles long and is now part of a popular walking route in the Mourne mountains ... Arch Caves are situated in a limestone area. Limestone is a sedimentary rock made up of bits ...