Peak-flow frequency analyses for Elk Creek at Augusta, Montana, based on data through water year 2018

The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for Elk Creek at Augusta, Montana, that were based on methods described by Sando and McCarthy (2018).

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:5c76f690e4b0fe48cb4c8d44
metadata_type geospatial
modified 20200831
old-spatial -112.3875, 47.4854, -112.3875, 47.4854
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 4733bbd50d4ccfee98889b5ef8817e992f72377c
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-112.3875, 47.4854], [-112.3875, 47.4854], [ -112.3875, 47.4854], [ -112.3875, 47.4854], [-112.3875, 47.4854]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • annual-exceedance-probability
  • ckan
  • geo
  • geoss
  • hydrology
  • lewis-and-clark-county
  • montana
  • national
  • north-america
  • peak-flow-frequency
  • streamflow
  • united-states
  • usgs-5c76f690e4b0fe48cb4c8d44
isopen False
license_id notspecified
license_title License not specified
maintainer Katherine Chase
maintainer_email kchase@usgs.gov
metadata_created 2025-11-22T08:55:34.740149
metadata_modified 2025-11-22T08:55:34.740153
notes The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for Elk Creek at Augusta, Montana, that were based on methods described by Sando and McCarthy (2018).
num_resources 2
num_tags 15
title Peak-flow frequency analyses for Elk Creek at Augusta, Montana, based on data through water year 2018