Limestone Pavements are bare limestone rock ... The ice sheet which covered the area carried with it huge boulders from as far away as Scandinavia. When the ice melted these huge boulders were ...

Sandstone and limestone tend to be the least ... they can be flat or angled. In fact, flat boulders make good steps. These large landscape rocks are sometimes used to build retaining walls or ...

Shake holes are formed in limestone landscapes when boulder clay is washed down through cracks or gaps in the underlying limestone.

Buildings and landscape ... barrel tile roofs, limestone trim, and black wrought iron accents make up the principal elements of this palette. Sandstone for campus use is obtained from a number of ...

The City of Boulder is taking action to combat these threats through a series of visionary climate mitigation and urban resilience initiatives. The Urban Ecosystems Initiative seeks to address ...