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Rockfall on Elm Street, Montpelier, Vermont 12/26/05

The rockfall on Elm St. in Montpelier, Vermont.

Photograph is taken looking to the west. Unsupported guard rails along Cliff St. are exposed near the top of the photograph. The Silurian age rock at the site is dark gray phyllite with beds of sandy limestone. The well developed cleavage planes dip moderately to steeply to the west and are cut by both steep and shallow dipping fractures.

Bedrock and surficial geologic maps for the area are posted on-line.

Photo taken 12/28/05 courtesy of George Springston

Cliff St., top of the rockfall,
Montpelier, VT (M. Gale,12/28/05)

Cliff St., top of the rockfall looking
south, Montpelier, VT
(M. Gale,12/28/05)

Dark gray phyllite with west dipping cleavage, rockfall,
Elm St., Montpelier, VT
(M. Gale 12/28/05)

Rockfall(12/26/05), Elm St., Montpelier, VT (G.Springston,12/28/05)

Cliff St., top of the rockfall looking south, Montpelier, VT (G. Springston,12/28/05)

Cliff St. guardrails exposed at the
top of the rockfalll
Montpelier, VT (1-on 12/28/05)

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Generalized Geologic 
	Map of Vermont - 1970 - click for larger map image

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