Natural Sinkholes

See category Natural Sinkholes on Waymarking.com .
Last import of category containing 100 waymarks in 18 different countries with 52 regions was on 2025-03-16.

First in country	Country	Region	Owner	Approved on	WM-Code	Title
	Australia	New South Wales	Throsbyonchurch	2017-03-22	WMTQWJ	The Big Hole - Berlang, NSW
stars	Australia	South Australia	bucketeer	2009-05-01	WM6A7R	Caroline Sinkhole, Penambol Conservation Park, South Australia
	Canada	British Columbia	The A-Team	2022-06-18	WM16AKY	Devil's Bath - Vancouver Island, British Columbia, Canada
stars	Canada	Manitoba	BarbershopDru	2007-09-12	WM26H8	Narcisse Wildlife Management Area Sinkhole
	Canada	Northwest Territories	wildwoodke	2008-01-01	WM2WXW	Sinkhole in the Sahtu - Northwest Territories
	Czechia	Jihomoravský kraj	ToRo61	2013-06-24	WMHBVF	Macocha - Moravian Karst, Czech Republic
stars	Czechia	Olomoucký kraj	puczmeloun	2012-05-11	WMECM8	Hranická propast - Hranice, Czech Republic
stars	Denmark	Region Nordjylland	Walking Boots	2024-07-17	WM1A2FF	Hestegraven - Rold Skov, Danmark
	France	Bourgogne-Franche-Comté	gemeloj	2019-08-05	WM1114R	Lapiaz à Loulle-Jura, France
stars	France	Centre-Val-de-Loire	Chickilim	2015-10-19	WMPRZQ	Les dolines de Limère - Centre, France
	France	Nouvelle-Aquitaine	sara et gege	2015-10-23	WMPTN9	doline du gouffre du Pre Noir -Aigonnay,Fr
	France	Occitanie	Alfouine	2017-09-22	WMWMZ0	L'aven de la chèvre d'André - Méjannes le Clap - France
	Germany	Baden-Württemberg	[somnambulist]	2016-05-10	WMR1YM	Dolinen am Eselsberg - Ulm, BW, Germany
	Germany	Hamburg	Windschattenwanderer	2022-12-15	WM174X8	Bahrenfelder See - Hamburg, Deutschland
stars	Germany	Niedersachsen	Max+Moritz	2010-10-02	WM3GTT	Holzhäuser Erdfalltrichter
	Germany	Saarland	GeoMaulis	2017-11-06	WMX00V	Mardelle auf dem Hölschberg - Erfweiler-Ehlingen, Saarland, Germany
	Germany	Schleswig-Holstein	T-Team!	2022-12-03	WM17230	Elsensee - Quickborne, Schleswig-Holstein, Germany
	Germany	Thüringen	Axel-F	2018-06-02	WMYA39	Sinkhole of Buchholz (D)
stars	Lebanon		Marc T	2009-06-30	WM6P8A	Balaa sinkhole, Lebanon
stars	Malta		PetjeOp	2024-09-17	WM1ADE0	Coral lagoon - Mellieha, Malta
	Mexico	Quintana Roo	Ariberna	2020-08-29	WM131YN	Gran Cenote - Tulum, Quintana Roo, Mexico
stars	Mexico	Yucatán	SUp3rFM & Cruella	2011-10-12	WMCTW6	Ik Kil Cenote - Pisté, Yucatán, Mexico
stars	Namibia		André de Montbard	2015-04-06	WMNMNE	Otjikoto Lake, Tsumeb, Namibia
stars	New Caledonia		DD Drix	2015-10-14	WMPR9R	Trou de Bone - Maré - Nouvelle Calédonie
stars	New Zealand	North Island	Punga and Paua	2009-04-23	WM68HB	Harwoods Hole. Takaka Hill. South Is. New Zealand.
stars	Portugal	Leiria	h_raky	2010-12-29	WMAC96	Hole da Mendiga-Portugal
	Portugal	Lisboa	RuiJSDuarte	2011-10-30	WMCXW3	Adraga’s Beach Fojo
	Portugal	Setúbal	tmob	2011-03-23	WMB1ED	Sinkhole - Terras do Risco - Arrábida, Portugal
stars	Slovakia	Košický kraj	Noe1	2013-06-02	WMH6JM	Silická ladnica - Slovakia
stars	Spain	Castilla-La Mancha	xeocach	2024-05-04	WM19TBB	Sima de Alcorón - Villanueva de Alcorón, Guadalajara, España
	Spain	Comunidad Valenciana	GURUGU	2024-07-17	WM1A1M4	El Bufador - Peñíscola, Castellón, España
	Switzerland	Basel Landschaft	fi67	2021-04-25	WM145B0	Doline - Rünenberg, BL, Switzerland
stars	Switzerland	Solothurn	fi67	2015-07-16	WMP6F8	Schällbachponor - Zwingen, BL, Switzerland
	United Kingdom	South Wales	Ddraig Ddu	2011-09-08	WMCEY5	Sinkhole, A487, Talybont, Ceredigion, Wales, UK
stars	United Kingdom	South West England	Dragontree	2010-10-01	WM9VGP	Culpeppers Dish - Briantspuddle, Dorset, UK
	United States	Alabama	strummin_along	2013-11-24	WMJJC8	Blue Springs
	United States	Arizona	DopeyDuck	2009-08-02	WM5J57	Montezuma Well Sinkhole - Rimrock, AZ
	United States	California	way2whacky	2008-10-07	WM4X18	Sulphur Hot Spring, Paso Robles, CA
	United States	Florida	Team Min Dawg	2007-05-18	WM1JA9	Devil's Millhopper
	United States	Idaho	jwanlesss	2021-03-28	WM1417J	Crater Butte - North of Dietrich, Idaho USA
	United States	Indiana	BruceS	2007-11-19	WM2M6H	I -64 Rest Area Sink Hole - Georgetown, Indiana
	United States	Iowa	8Nuts MotherGoose	2007-06-24	WM1QKD	Eden Valley Sinkhole
	United States	Kansas	boisfort	2007-04-29	WM1FWM	St Jacob's Well
	United States	Kentucky	ChapterhouseInc	2009-08-02	WM6XMK	Cedar Sink - Mammoth Cave National Park - KY
	United States	Michigan	S5280ft	2008-10-06	WM4WPN	Sinkholes Pathway Sinkhole #1 - Shoepac Lake, Michigan
	United States	Missouri	paulspaper	2008-04-18	WM3KZG	Ball Mill Resurgence Pit - Perryville, MO
	United States	Nevada	mojave_rattler	2009-01-24	WM5M05	Devil's Throat Sink Hole
	United States	New Mexico	Geojeepsters	2012-07-20	WMEVQF	Blue Hole - Santa Rosa New Mexico
	United States	Ohio	4 boys explore	2014-08-12	WMM7KW	Thaddeus Kosciuszko Park Sinkhole - Dublin, Ohio
	United States	Oregon	dkestrel	2014-02-13	WMK396	Little Crater Lake - Government Camp, OR
	United States	Pennsylvania	r.e.s.t.seekers	2022-05-17	WM1667B	Fort Roberdeau sinkhole - Blair County, PA
	United States	Tennessee	lilluckyclover	2007-08-31	WM23P3	The Blue Hole
	United States	Texas	txoilgas	2009-10-26	WM7H46	Wink Sinkhole - Wink, Texas
stars	United States	Utah	robbdogg120	2007-03-30	WM1C1C	Sinkhole on the San Rafael Swell
	United States	Washington	Hikenutty	2007-04-06	WM1CQ0	Hylebos Wetlands Sinkhole - Federal Way, Washington
	United States	Wyoming	onfire4jesus	2013-05-02	WMH0H2	Vore Buffalo Jump Sister sinkhole - Crook County, Wyoming