ODNR Division of Geological Survey
Sinkhole, Cavern, or Cave Karst Reporting Form

To support the Division of Geological Survey's efforts to investigate, identify, and map karst features across Ohio, we have created a reporting form for Ohio citizens to fill out and submit if they are aware of such features. While we are primarily concerned with the karst feature known as sinkholes, we welcome any information on karst caverns or caves. More information on these features can be found at <http://www.ohiodnr.com/geosurvey/tabid/7904/Default.aspx>.


ODNR Division of Geological Survey

Sinkhole, Cavern, or Cave Karst Reporting Form


     Provide as much of the requested information as possible. Some of the data are essential (*) to make the report useful. The more complete and accurate the answers to the questions on the form, the more valuable the report. The three most important points for reporting karst features are: (1) to be as certain as possible that the feature you are reporting is a karst feature (however, when in doubt report the feature); (2) to be as accurate as possible with its location; and (3) if it is a new feature, the approximate date it was noticed. If you know the coordinates of the feature (latitude and longitude from a map or GPS receiver), please provide that information as well. The Geological Survey desires reports on suspected karst features of any size, from one foot to 10 feet or larger in diameter.

     Please provide the information below and click the Submit button. Or click here [pdf] to download a printable version of the form and then either fax or mail it to us using the contact information on the left side of the screen.

Contact Information
Name of person filing report*:
 Representing:

(e.g., you, homeowner, homeowner assoc., business, etc.)
Property owner or closest address to karst feature location
Name:
Street*:
City*:
 Zip code
Telephone:
Type:		 Contact time:
Email:
County of feature*:
 Township of feature:
Directions to feature*:
Examples: "From Delaware, take US-36 west 3 miles; 100 feet south of highway between South Section Line Road and Klondike Road"
"500 feet due west of Liberty Presbyterian Church in Powell, Ohio"
Latitude*: Longitude*:
Describe unusual or extenuating circumstances, or any additional relevant details, reported to any other agency:
or continue below
Optional sinkhole, cavern, or cave information (if known)
Date feature was first observed:
(mm/dd/year)		 Date feature occurred: (mm/dd/year):
USGS 7.5-minute topographic quadrangle:

Elevation:
(feet above sea level)		 Determined with or by:
Karst feature history:
Please describe any property damage:
Please describe any evidence of trash or fill attempt:
Please list any utility lines exposed:
Please describe any evidence of prior collapse:
Was there a pre-existing depression: If yes, did it hold water: If so, when:
(e.g., always, only after major storm, etc)
General weather conditions during prior month:

(e.g., dry, drought, normal, heavy rain, etc.)
Karst feature description
Feature's short axis:
Length: Width: Orientation:
Feature's long axis:
Length: Width: Orientation:
Feature's depth: (undisturbed ground level to minimum depth visible)
Exposed rock or bedrock: Water visible:
Water flowing into feature: Cave or cavern entrance visible: