Environmental signs as physically manifested signs that we and other animals perceive and interpret in the natural environment are seldom focused on in contemporary semiotics. The aim of the present paper is to highlight the diversity of environmental signs and to propose a typology for analysing them. Combining ecosemiotics and the pragmatist semiotics of C. Peirce and C. Morris, the proposed typology draws its criteria from the properties of the object and the representamen of the sign, and of their relationships. (...) The analysis distinguishes eight basic types of environmental signs and provides examples of these from the natural environment. The typology also integrates existing concepts of environmental affordances, ecofields, phonetic syntax, sign fields, ecological codes, meta-signs and others. In addition to basic types of environmental signs, compound environmental signs are discussed with three types of these distinguished: environmental meta-signs; ecological codes; and environmental-cultural hybrid signs. Further study of compound environmental signs could lead to reconceptualising relations between linguistic and pre-linguistic semiosis. (shrink)