Telegraph Hill is a nature reserve near Lilley in north Hertfordshire. It is in the Chilterns Area of Outstanding Natural Beauty (AONB). According to the Chilterns AONB, the hill is owned by the Herts and Middlesex Wildlife Trust;[1] a notice on the site says that it is managed by the trust, but it is not listed on the trust's web site as one of its reserves.
- ^ "Telegraph Hill". Chilterns Area of Outstanding Natural Beauty. Retrieved 11 August 2015.