Mearson Springs pool, which has three vents, measures 75 ft (22.9 m) southwest to northeast and 51 ft (15.5 m) southeast to northwest. The largest spring vent is southernmost, where a cavern opens beneath a limestone shelf. The depth over the largest spring measures 11.8 ft (3.6 m). The bottom is limestone and varying amounts of sand. Spring water is clear and slightly green, contrasting with the dark water of the Suwannee River. There are thick patches of algae but little to no other aquatic vegetation. Three springs producing prominent boils are oriented linearly along a 30 ft (9.1 m) long, north-south trending limestone fissure. On the southwest side, a wooden boardwalk and stairs lead down into the spring from the 15 to 25 ft (4.6 – 7.6 m) high banks. The short spring run discharges north-east about 30 ft (9.1 m) into the river. Land around the spring is privately owned and forested adjacent to the spring. Spring discharge is dictated by Suwannee River stage. Bare limestone and sand banks that are typically underwater were exposed during the April 2002 visit due to extremely low river levels. The adjacent riverbanks are composed of scalloped limestone, shell marl, and sand.
Mearson Springs are located approximately 9 miles (14.5 km) east of Mayo along the southwest bank of the Suwannee River. From the intersection of US 27 and SR 51 in Mayo, head east on US 27 for approximately 6.6 miles (10.6 km) to the intersection with CR 251. Turn east (left) onto CR 251 and drive approximately 2 miles (3.2 km) until the road makes a 90 degree bend to the north. Continue north on CR 251 approximately 0.7 miles (1.2 km) to a boat landing at the end of the road. The spring are 0.8 miles (1.3 km) downstream from the boat ramp on SR 251. Mearson Springs occupy a southwest to north-east-trending cove surrounded by high banks along the southwest bank of the Suwannee River.