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Big Walnut Creek [at Obetz], above Groveport Rd. bridge, [SE edge, 2.6 mi. WNW of Groveport, 7.6 mi. SE of center of Columbus]

Borden Creek at Forest Service Road 208 bridge, [4.8 mi. NW of Grayson, 11.5 mi. SSW of Moulton]

Olentangy River at park near Delaware WTP, [1.1 mi. below Delaware Reservoir dam, 2.9 mi. N of center of Delaware]

Big Darby Creek, 4.4 mi. above US Rt 40 dam

Paint Creek, at [end of] Dill Road, ca. ¼ mi.S of Seip Mound, 15 mi.SW of Chillicothe, 3 mi. E of Bainbridge

Rio de la Plata

Cedar River at Vinton, at East Bluffs

Lake Erie at Sandusky Bay, at SE corner of Bay Point

Lake Waccamaw at Lake Waccamaw, (town), along N shore

Ohio River, 1.4 mi. N of Skylight, [8.6 mi. NW of La Grange]

Big Darby Creek at Texas Eastern gas pipeline, 2.5 mi. SSE of Darbyville, 9.1 mi. WNW of Circleville

Tombigbee River at Buzzards Island, 5.2 mi. S of Columbus

Tennessee River at mussel camp, [3.8 mi. SSE of Saltillo]

Ohio River at Portsmouth, [S edge]

Big Walnut Creek at OH Rt. 665 (London-Groveport Rd.) bridge, [0.5 mi. W of Shadeville, 9.1 mi. S of Columbus]

Lake Erie, beach on E side of Bay Point, 1 ½ mi. S of Marblehead

Scioto Brush Creek [at Rushtown], [at OH Rt. 104 bridge, [7.7 mi. NNW of Portsmouth]

St. Francis River at SH MM bridge, [5.29 mi E of Killarney Shores; 4.13 mi N of Silver Mine]

Big Darby Creek at access, [below mouth of Gay Run], 0.9 mi.N of Harrisburg, 1.7 mi.NW of Orient, [13.5 mi.SW of Columbus]

Sheyenne River, 4 mi E and 1 mi N of Shepard

Lake Erie at Fishery Bay, 75 yds. W of Gibraltar Island dining hall, 0.4 mi. NNW of Put-in-Bay

Mississippi River at Louisiana, [1.72 mi WNW of Quincy Junction, 2 mi NE of Elmwood]

East Fork Little Miami River, "near Williamsburg"

Paint Creek, along Falls Rd., above mouth of Cove Run, 1.1 mi. WNW of Bainbridge

Meramec River, [2.48 mi SE of Allenton; 2.82 mi SW of Eureka]

Cahaba River at Centreville, above US Rt. 82/AL Rt. 25 bridge

Wolf Creek at OH Rt. 53 bridge, just above its mouth, 4.4 mi. ENE of Burgoon, 5.5 mi. SSW of Fremont

Strawberry River at US Rt. 167 bridge, 2.0 mi. N of Evening Shade, [8.6 mi. S of Ash Flat]

Federal Creek at OH Rt. 329 bridge, to its mouth, 1.2 mi. NE of Stewart, [12.1 mi. E of Athens]

Wabash River, opposite Vincennes (IN)

Yellowbud Creek 0.1 mi. above Ebenhack Rd. bridge, 6.7 mi. SE of Williamsport, 7.8 mi. SW of Circleville

Kennedy Creek, just above its mouth, 2.9 mi. SSE of Coopersville, 10.8 mi. SSE of Monticello

Eagle Creek, 0.8 mi. WSW of Glencoe, 4.5 mi. NE of Sparta, [6.3 mi. SSE of Warsaw, 12.2 mi. NNE of Owenton]

St. Joseph River at Newville bridge [4.9 mi. NE of St. Joe, 5.75 mi. S of Butler]

Auglaize River [at bridge, [3.7 mi. NW of Oakwood]

Clinch River at Slant, below foot bridge, 7.1 mi. NNW of Gate City, 8.1 mi. ENE of Clinchport

Dry Fork Creek at Dean Ford, [3.0 mi. NW of DeCamp, 5.5 mi. SSW of St. James, 7.4 mi. ESE of Rolla]

Omaha Creek below bridge, 3.0 mi. S of Homer, [13.2 mi. SSW of South Sioux City]

Little Darby Creek at Georgesville, above Alkire Rd. bridge, 4.5 mi. SE of West Jefferson, 6.5 mi. SW of Columbus

Garonne River

Muskingum River at mouth of Meigs Creek, 4 mi. NW of Beverly

White River, 2 mi. ENE of Maxville, 5 mi. W of Winchester

Clinch River at Blackford, above VA Rt. 80 bridge, 2.2 mi. SE of Honaker, 12.0 mi. ENE of Cleveland

St. Francis River at 1 mi. S of Rt. 64 bridge, halfway between Wynne and Parkin

Rock Creek, [1.8 mi. ESE of Bell Farm, 11.0 mi. WSW of Whitley City]

Sipsey River at US Rt. 82 bridge, [1.5 mi. W of Buhl, 12.3 mi. WNW of center of Tuscaloosa]

Mississippi River at Cordova, along shore, at site of proposed marina docks, [7 mi. N of Rapids City]

Little Miami River at Co.Rt. 20 (Fairgrounds Rd.) bridge, 3.3 mi. NW of Xenia, 7.0 mi. SW of Yellow Springs

Capsey Creek at Forest Service Road 266 bridge, [3.3 mi. WSW of Upshaw, 13.8 mi. NE of Double Springs]

Tennessee River, below Wilson Dam, above mouth of Pond Creek