See also:

• Regional: Europe: United Kingdom: England: Science and Environment  (16)

• Countryside Management Service - Works with communities in Hertfordshire to help them to care for and enjoy the environment. Background information, details of events, opportunities for volunteering, and newsletters.
• East Herts Geology Club - Profile, meetings, local geology and merchandise.
• Friends of Northaw Great Wood - A group of volunteers assist with nature conservation in Northaw Great Wood.
• Hertfordshire Geological Society - Profile, meetings, field trips and archives.
• Hertfordshire Natural History Society - Describes this organisation and its specialist groups. Includes publication contents lists, programme and information about membership.
• South West Herts Astronomical Society - Meetings, events, special course, images, and observation log books.