What Water Level Do You Need to Paddle the St. Marys River?
The St. Marys reads on USGS gauge 02231000 near Macclenny, FL. It is blackwater and rain-driven, so no single number decides it: read the stage, the trend after rain and the flood forecast together. The middle course carries paddling water most of the year. The upper river above Macclenny gets bony in a dry summer. This is our home water, and the trend after rain matters more here than the reading on the day.
The gauge to read
| USGS 02231000 | St. Marys River near Macclenny, FL | live reading |
Readings come from the USGS. The thresholds above are ours, measured on the water in a loaded canoe and cross-checked against the USGS.
What the season does to it
Runnable most of the year in the middle course; late fall through spring is most dependable.
Where you camp, and how high
Elevated sandbars along the middle river. Traders Hill Recreation Area has amenities. Camp above the high-water line.
Where these numbers come from
We paddle this river. The ranges above are what a loaded boat needs, not what an agency publishes as navigable, and they are the numbers we use ourselves before deciding whether a trip is worth the drive. A gauge is a reading at one point on one day: rain upstream, a recent rise and the flood forecast all change what the number means, so read the trend and not just the figure.
Written by Rodney Thompson, who has paddled and camped every river on this site. Full river guide: St. Marys River · live readings for all seventeen rivers: river levels.