Submit your 2020 Flathead Lake Secchi Dip-in Results HERE

Welcome to the 2020 Flathead Lake Secchi Dip-in.  Submit your results below.

2020 Flathead Lake Secchi Dip-in Protocol

2020 Flathead Lake Secchi Dip Data Form (same as below)

  • Date Format: MM slash DD slash YYYY
  • :
  • ft.
  • Lat/Long
  • degrees F or C
  • Secchi Disk:

  • ft
  • ft
  • ft
  • Water Conditions

  • Weather Conditions