Related Resources

• FEMA - http://www.fema.gov/
• National Wetlands Inventory - http://www.nwi.fws.gov/
• USDA - Soil Survey Manual -  http://soils.usda.gov/
• USGS - http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html
  

State

• Mass GIS - Aerial Photos http://ortho.mit.edu/nsdi/
• Mass GIS - Shape Files (Need GIS Software to view) - http://www.magnet.state.ma.us/mgis/
• Metropolitan District Commission -  http://www.state.ma.us/bb/fy2002h1/budget_recommendations/departments/mdc.htm

City of Cambridge

• Community Development Department - Environmental & Transportation Planning - http://www.ci.cambridge.ma.us/~CDD/envirotrans/
  

Organizations

• The Charles River Watershed Association - http://www.crwa.org/

• 1 millimeter (mm) = 0.03937 inch = 0.1 centimeter
• 1 centimeter (cm) = 0.39 inch = 0.01 meter
• 1 inch (in) = 2.54 centimeters = 0.083 foot
• 1 foot (ft) = 0.3048 meter = 0.33 yard
• 1 yard (yd) = 0.9144 meter
• 1 meter (m) = 3.2808 feet = 1.0936 yards
• 1 kilometer (km) = 1000 meters = 0.6214 mile (statute) = 3281 feet
• 1 mile (statute) (ml) = 5280 feet = 1.6093 kilometers
• 1 mile (nautical) (ml) = 6076 feet = 1.8531 kilometers

Area

• 1 square centimeter (cm2) = 0.0001 square meter = 0.15550 square inch
• 1 square inch (in2) = 0.0069 square foot = 6.452 square centimeters
• 1 square foot (ft2) = 144 square inches = 0.0929 square meter
• 1 square yard (yd2) = 9 square feet = 0.8361 square meter
• 1 square meter (m2) = 1.1960 square yards = 10.764 square feet
• 1 acre (ac) = 43,560 square feet = 4046.95 square meters
• 1 hectare (ha) = 10,000 square meters = 2.471 acres
• 1 square kilometer (km2) = 1,000,000 square meters = 0.3861 square mile
• 1 square mile (mi2) = 640 acres = 2.590 square kilometers