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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
1 341 368 390 431 444 419 368 325 294 281 281 322
2 341 369 390 429 446 417 367 324 292 279 282 322
3 344 370 392 428 447 415 365 322 292 278 281 328
4 346 370 393 429 448 414 362 321 293 277 283 327
5 348 370 394 431 448 412 361 320 293 276 287 326
6 349 370 395 429 447 410 359 320 292 275 289 325
7 350 371 394 428 446 409 357 319 290 275 291 323
8 348 372 395 428 446 407 356 317 289 275 290 321
9 348 374 400 426 446 407 355 317 288 277 289 320
10 348 373 403 426 445 406 354 317 287 279 287 320
11 350 374 403 425 447 406 352 317 290 281 285 320
12 350 373 403 427 446 404 352 316 287 280 284 319
13 354 375 405 432 445 402 350 314 286 279 283 319
14 354 377 407 434 446 400 349 315 284 279 283 320
15 355 379 408 433 446 397 347 315 284 279 285 322
16 353 380 408 432 444 395 344 314 285 278 287 323
17 351 381 409 430 443 395 342 313 285 279 289 326
18 350 383 412 429 441 395 342 311 285 278 296 329
19 351 383 416 428 439 392 340 309 284 276 300 331
20 351 384 417 430 437 391 339 308 283 276 304 332
21 350 385 416 430 436 389 337 309 282 275 303 336
22 352 388 417 430 434 387 336 307 282 274 306 337
23 355 389 418 432 433 385 334 305 283 276 308 335
24 358 390 418 435 431 384 334 303 284 275 308 335
25 359 388 420 440 430 382 331 301 286 274 311 337
26 361 389 421 441 428 379 329 299 285 272 311 337
27 362 391 422 442 427 377 328 299 286 272 314 337
28 361 391 424 442 426 374 326 298 284 274 319 340
29 362 373 425 442 424 371 325 296 282 278 320 339
30 364   429 442 422 369 327 296 281 282 321 339
31 368   431   420   327 294   280   340