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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
1 345 370 392 430 444 421 372 328 294 281 280 325
2 345 371 391 429 447 419 371 328 292 279 280 324
3 347 372 393 428 448 417 369 326 292 278 280 330
4 349 372 394 429 449 416 367 325 293 277 287 329
5 351 372 395 435 449 414 365 324 293 276 292 328
6 353 372 396 434 448 412 363 324 292 275 295 327
7 353 373 395 431 447 411 361 322 290 275 296 325
8 351 373 396 431 447 409 360 321 289 274 295 323
9 351 375 401 429 446 409 359 320 288 277 294 321
10 350 375 404 429 445 408 358 320 287 279 292 322
11 352 375 404 428 447 408 356 320 290 280 290 321
12 353 374 404 430 446 406 356 316 287 279 289 320
13 357 376 406 435 445 404 354 314 286 278 287 320
14 357 378 407 436 446 401 353 315 284 278 288 321
15 357 380 408 435 446 399 351 315 284 278 290 324
16 356 382 409 434 444 398 348 314 285 277 292 326
17 354 383 409 432 443 398 346 313 285 278 294 329
18 352 385 412 431 441 397 346 311 285 277 300 332
19 353 385 416 430 439 395 344 309 284 275 304 334
20 353 385 418 432 437 393 343 308 283 275 308 335
21 352 387 416 432 436 391 340 309 282 274 307 339
22 354 389 417 431 434 389 339 307 282 273 310 340
23 357 391 418 434 433 387 338 305 283 275 311 338
24 360 392 418 436 431 386 337 303 284 274 312 338
25 361 389 420 441 431 384 335 301 286 272 314 340
26 362 391 421 442 430 381 333 299 285 271 314 341
27 363 392 422 443 429 379 331 299 286 271 317 340
28 362 392 424 443 428 376 330 298 284 272 322 343
29 363 373 425 443 425 374 329 296 282 277 323 343
30 366   428 443 424 373 331 296 281 280 324 342
31 370   430   422   331 294   279   343