Maps
Locality Map
Locality map for Nerodia rhombifer (Diamond-backed Watersnake).
Map created 5 February 2019.
County Map
County map for Nerodia rhombifer (Diamond-backed Watersnake).
Map created 5 February 2019.
Historical Locality Map
Historical locality map for Nerodia rhombifer (Diamond-backed Watersnake). Black circles ( 
) represent records after 1986, blue squares ( 
) represent records between 1966 and 1986, orange triangles ( 
) represent records prior to 1966. Note that more recent records might conceal underlying older records.
Map created 5 February 2019.
Historical County Map
Historical county map for Nerodia rhombifer (Diamond-backed Watersnake). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that only the most recent county record for each county is shown.
Map created 5 February 2019.
Ecological Drainage Locality Map
Ecological Drainage Units locality map for Nerodia rhombifer (Diamond-backed Watersnake).
Map created 5 February 2019.
Natural Divisions Locality Map
Natural Divisions and Sections locality map for Nerodia rhombifer (Diamond-backed Watersnake).
Map created 5 February 2019.
Major Watersheds Locality Map
Major Watersheds locality map for Nerodia rhombifer (Diamond-backed Watersnake).
Map created 5 February 2019.
Level I Ecoregion Locality Map
Level I Ecoregion locality map for Nerodia rhombifer (Diamond-backed Watersnake).
Map created 5 February 2019.
Level II Ecoregion Locality Map
Level II Ecoregion locality map for Nerodia rhombifer (Diamond-backed Watersnake).
Map created 5 February 2019.
Level III Ecoregion Locality Map
Level III Ecoregion locality map for Nerodia rhombifer (Diamond-backed Watersnake).
Map created 5 February 2019.
Level IV Ecoregion Locality Map
Level IV Ecoregion locality map for Nerodia rhombifer (Diamond-backed Watersnake).
Map created 5 February 2019.