I never knew about the fines -- but Im always afoot or on skates, never on a bicycle. From my trail skating blog at http://minutemantrail.blogspot.com/2009/02/trail-conditions-coming-along-quickly.html.

Chelsea Rock Salt Pile with Sa...

By Fran Gardino

Orient Heights, Boston MA

By Ibn Batota

Strogoff by the Rails

By Fran Gardino

The Grand Mystic River Bridge...

By Fran Gardino

East Boston. Shore Plaza Apar...

By henrydoherty

Tobin Bridge in fog and snow.

By MementoMori

Rinos Place

By J Eggersdorfer

Downtown Chelsea MA

By Fran Gardino

Charlestown Waterfront - Charl...

By John M Sullivan

Mystic/Tobin Memorial Bridge -...

By John M Sullivan