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USGS Daily Statistics for Arkansas

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 07069190 Mammoth Spring at Mammoth Spring


Fulton County, Arkansas
Hydrologic Unit Code 11010010
Latitude  36°29'53", Longitude  91°32'08" NAD27
Land-surface elevation 501.19 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1980-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 345 370 392 430 444 419 368 325 294 281 280 325
2 345 371 391 429 446 417 367 324 292 279 280 324
3 347 372 393 428 447 415 365 322 292 278 280 330
4 349 372 394 429 448 414 362 321 293 277 287 329
5 351 372 395 431 448 412 361 320 293 276 292 328
6 353 372 396 429 447 410 359 320 292 275 295 327
7 353 373 395 428 446 409 357 319 290 275 296 325
8 351 373 396 428 446 407 356 317 289 274 295 323
9 351 375 401 426 446 407 355 317 288 277 294 321
10 350 375 404 426 445 406 354 317 287 279 292 322
11 352 375 404 425 447 406 352 317 290 280 290 321
12 353 374 404 427 446 404 352 316 287 279 289 320
13 357 376 406 432 445 402 350 314 286 278 287 320
14 357 378 407 434 446 400 349 315 284 278 288 321
15 357 380 408 433 446 397 347 315 284 278 290 324
16 356 382 409 432 444 395 344 314 285 277 292 326
17 354 383 409 430 443 395 342 313 285 278 294 329
18 352 385 412 429 441 395 342 311 285 277 300 332
19 353 385 416 428 439 392 340 309 284 275 304 334
20 353 385 418 430 437 391 339 308 283 275 308 335
21 352 387 416 430 436 389 337 309 282 274 307 339
22 354 389 417 430 434 387 336 307 282 273 310 340
23 357 391 418 432 433 385 334 305 283 275 311 338
24 360 392 418 435 431 384 334 303 284 274 312 338
25 361 389 420 440 430 382 331 301 286 272 314 340
26 362 391 421 441 428 379 329 299 285 271 314 341
27 363 392 422 442 427 377 328 299 286 271 317 340
28 362 392 424 442 426 374 326 298 284 272 322 343
29 363 373 425 442 424 371 325 296 282 277 323 343
30 366   428 442 422 369 327 296 281 280 324 342
31 370   430   420   327 294   279   343