| Educator Supplement | X |
 |
||
| Photo Essay | X | |||
| Background Information | X | |||
| Background Slides | X | |||
| Habitat Slides (all sites) | X | |||
| Aerial Photography | 1958 | 1978 | 1988 | 1995 1995 N.O. |
| Satellite Imagery | 1993 | |||
| Habitat Maps | 1956 | 1978 | 1988 | |
| Topographic Maps | 1:24,000 1:24,000 N.O. |
1:100,000 | 1:250,000 | |
| Land Cover Maps | 1956 | 1978 | 1988 | 1956/78
1978/88 1956/88 |