M arion County .................... Rainbow Springs Group ......... Rainbow No. 1 ............. Rainbow No. 4 ............. Rainbow No. 6 ............. Bubbling Spring ............ Silver Glen Springs ............. Silver Springs Group ............ M ain Spring ............... Reception Hall ............. Blue Grotto ................ Suwannee County ................. Falmouth Spring ............... Taylor County .................... N utall Rise ................... Steinhatchee River Rise ......... Union County ..................... Santa Fe Spring ............... Volusia County .................... Volusia Blue Spring ............ W akulla County ................... Spring Creek Springs Group ...... Spring Creek No. 1 .......... Spring Creek No. 2 .......... W akulla Spring ................ Springs Information Resources on the Web . R eferences ........................... G lossary ............................ Figures Old photograph of the bath house at White Springs, Hamilton Springs Task Force members at Madison Blue Spring ...... Location of first order magnitude springs............... Native American artifacts ............................ Generalized geologic map of Florida .................... Karst areas related to first magnitude springs ............ An FGS Spring Sampling Team, 2001 ................... Jackson Blue Springs aerial photo ...................... H ornsby Spring .................................... Hornsby Spring location map ......................... Gainer Springs Group Vent 1C ........................ Gainer Springs Group Vent 2 ......................... Gainer Springs Group location map .................... Chassahowitzka Main Spring ......................... Chassahowitzka No. 1 ............................... Chassahowitzka Springs Group location map ............. Homosassa Springs Group ............................ County, 1920s ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ .100 .100 .100 .101 .101 .101 .105 .108 .108 .111 .111 .112 .112 .115 .115 .118 .121 .121 .124 .124 .128 .128 .128 .131 .132 .135 .135 .138 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17.