洞穴系统
Jackson Blue Spring cave
A first-magnitude spring cave east of Marianna, feeding Merritt's Mill Pond; the head spring is leased by Jackson County, which describes limited scuba training and exploration there. Diving rules are not published by the county.
Jackson Blue Spring rises in Blue Springs Recreation Area, about five miles east of Marianna, and feeds Merritt's Mill Pond, a 202-acre reservoir. Jackson County has leased the head spring from the Florida Department of Environmental Protection for more than 20 years and runs it as a swimming and recreation park, with day-to-day operations handled by a private concession.
The spring opens into a cave complex that the county says is home to two rare cave-dwelling animals, the Georgia blind salamander and the Dougherty Plain cave crayfish. The county describes its management of the site as including limited scuba training and exploration, but its pages publish no diving rules, fees or permit procedure.
The Northwest Florida Water Management District lists Jackson Blue as a first-magnitude spring. No published survey length or maximum depth for the cave was found in sources that could be checked for this record.
水况、水流与洪水
A first-magnitude spring (64.6 million gallons a day or more, by the water management district's definition) that supplies Merritt's Mill Pond.
为何重要
Habitat for the Georgia blind salamander and the Dougherty Plain cave crayfish, according to Jackson County.
环境条件
The park operator describes the water as 72°F (22°C) year-round. The county announced revised park hours starting 2026-03-21.
典型范围来自已发表资料，不代表当前实际状况。
入口与潜点
The head spring in Blue Springs Recreation Area is the documented entrance. Other springs feed Merritt's Mill Pond, but their cave connections are not described in the sources read.
仅供方位参考，不可用于导航。空心圆点为大致位置。
本页所有信息及其来源 (8)
| 信息条目 | 状态 | 来源 |
|---|---|---|
| Jackson County has leased the head spring from the Florida Department of Environmental Protection for over 20 years, manages the site with limited scuba training and exploration, and has a third party run operations and concessions.No diving rules published by the county as of 2026-10-14. | 已核实 | [1] |
| The spring supplies Merritt's Mill Pond, a 202-acre reservoir, and is about five miles east of Marianna. | 已核实 | [1] |
| The cave complex is home to the Georgia blind salamander and the Dougherty Plain cave crayfish. | 已核实 | [1] |
| Jackson Blue is a first-magnitude spring, which the district defines as discharging 64.6 million gallons per day or more. | 已核实 | [2] |
| The park operator cites a year-round water temperature of 72°F.Operator statement. | 已报告 | [3] |
| Jackson County lists park hours starting 2026-03-21 of 10:00 AM to 5:30 PM on weekdays and 9:30 AM to 6:00 PM on weekends.The operator's site lists 5:00 PM weekday closing. | 已核实 | [1] |
| USGS lists Jackson Blue Spring near Marianna (site 02358795) at latitude 30.79046943.Public county park head spring. | 已核实 | [4] |
| USGS lists Jackson Blue Spring at longitude -85.1407611. | 已核实 | [4] |
已核实：来自我们直接查阅的官方或主要来源。已报告：仅来自二手来源。来源存在冲突：注释中列出两种版本。可能已过时：我们找到的最新来源已有一定年代。
由我们根据上述来源以自己的文字整理撰写。 提交更正