List of impact structures in North America

This list includes all 60 confirmed impact structures in North America in the Earth Impact Database (EID). These features were caused by the collision of large meteorites or comets with the Earth. For eroded or buried craters, the stated diameter typically refers to an estimate of original rim diameter, and may not correspond to present surface features.

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Canada

Name	Location	Diameter (km)	Age (Ma/millions)	Coordinates
Brent	Ontario	3.8	396 ± 20	46°5′N 78°29′W / 46.083°N 78.483°W / 46.083; -78.483 (Brent)
Carswell	Saskatchewan	39	115 ± 10	58°27′N 109°30′W / 58.450°N 109.500°W / 58.450; -109.500 (Carswell)
Charlevoix	Quebec	54	342 ± 15	47°32′N 70°18′W / 47.533°N 70.300°W / 47.533; -70.300 (Charlevoix)
Couture	Quebec	8	430 ± 25	60°8′N 75°20′W / 60.133°N 75.333°W / 60.133; -75.333 (Couture)
Deep Bay	Saskatchewan	13	99 ± 4	56°24′N 102°59′W / 56.400°N 102.983°W / 56.400; -102.983 (Deep Bay)
Eagle Butte	Alberta	10	< 65	49°42′N 110°30′W / 49.700°N 110.500°W / 49.700; -110.500 (Eagle Butte)
Elbow	Saskatchewan	8	395 ± 25	50°59′N 106°43′W / 50.983°N 106.717°W / 50.983; -106.717 (Elbow)
Gow	Saskatchewan	4	< 250	56°27′N 104°29′W / 56.450°N 104.483°W / 56.450; -104.483 (Gow)
Haughton	Nunavut	23	39	75°23′N 89°40′W / 75.383°N 89.667°W / 75.383; -89.667 (Haughton)
Holleford	Ontario	2.35	550 ± 100	44°28′N 76°38′W / 44.467°N 76.633°W / 44.467; -76.633 (Holleford)
Île Rouleau	Quebec	4	< 300	50°41′N 73°53′W / 50.683°N 73.883°W / 50.683; -73.883 (Île Rouleau)
La Moinerie	Quebec	8	400 ± 50	57°26′N 66°37′W / 57.433°N 66.617°W / 57.433; -66.617 (La Moinerie)
Lac à l'Eau Claire Est Clearwater East	Quebec	26	460–470	56°04′N 74°06′W / 56.067°N 74.100°W / 56.067; -74.100 (Lac à l'Eau Claire Est)
Lac à l'Eau Claire Ouest Clearwater West	Quebec	36	286.2 ± 2.6	56°13′N 74°30′W / 56.217°N 74.500°W / 56.217; -74.500 (Lac à l'Eau Claire Ouest)
Manicouagan	Quebec	100	214 ± 1	51°23′N 68°42′W / 51.383°N 68.700°W / 51.383; -68.700 (Manicouagan)
Maple Creek	Saskatchewan	6	< 75	49°48′N 109°6′W / 49.800°N 109.100°W / 49.800; -109.100 (Maple Creek)
Mistastin	Newfoundland and Labrador	28	36.4 ± 4	55°53′N 63°18′W / 55.883°N 63.300°W / 55.883; -63.300 (Mistastin)
Montagnais	Nova Scotia	45	50.50 ± 0.76	42°53′N 64°13′W / 42.883°N 64.217°W / 42.883; -64.217 (Montagnais)
Nicholson	Northwest Territories	12.5	< 400	62°40′N 102°41′W / 62.667°N 102.683°W / 62.667; -102.683 (Nicholson)
Pilot	Northwest Territories	6	445 ± 2	60°17′N 111°0′W / 60.283°N 111.000°W / 60.283; -111.000 (Pilot)
Pingualuit formerly Chubb and Nouveau-Québec	Quebec	3.44	1.4 ± 0.1	61°17′N 73°40′W / 61.283°N 73.667°W / 61.283; -73.667 (Pingualuit)
Presqu'île	Quebec	24	< 500	49°43′N 74°48′W / 49.717°N 74.800°W / 49.717; -74.800 (Presqu'île)
Tunnunik	Northwest Territories	25	~130-350	72°28′N 113°56′W / 72.467°N 113.933°W / 72.467; -113.933^[1]
Saint Martin	Manitoba	40	220 ± 32	51°47′N 98°32′W / 51.783°N 98.533°W / 51.783; -98.533 (Saint Martin)
Slate Islands	Ontario	30	about 450	48°40′N 87°0′W / 48.667°N 87.000°W / 48.667; -87.000 (Slate Islands)
Steen River	Alberta	25	91 ± 7	59°30′N 117°38′W / 59.500°N 117.633°W / 59.500; -117.633 (Steen River)
Sudbury	Ontario	250	1850 ± 3	46°36′N 81°11′W / 46.600°N 81.183°W / 46.600; -81.183 (Sudbury)
Viewfield	Saskatchewan	2.5	190 ± 20	49°35′N 103°4′W / 49.583°N 103.067°W / 49.583; -103.067 (Viewfield)
Wanapitei	Ontario	7.5	37.2 ± 1.2	46°45′N 80°45′W / 46.750°N 80.750°W / 46.750; -80.750 (Wanapitei)
West Hawk	Manitoba	2.44	351 ± 20	49°46′N 95°11′W / 49.767°N 95.183°W / 49.767; -95.183 (West Hawk)
Whitecourt	Alberta	0.04	<0.0011	54°00′N 115°36′W / 54.000°N 115.600°W / 54.000; -115.600 (Whitecourt)

Mexico

Name	Location	Diameter (km)	Age (Ma/millions)	Coordinates
Chicxulub	Yucatan	170	64.98 ± 0.05	21°20′N 89°30′W / 21.333°N 89.500°W / 21.333; -89.500 (Chicxulub)

United States

Name	Location	Diameter (km)	Age (Ma/millions)	Coordinates
Ames	Oklahoma	16	470 ± 30	36°15′N 98°12′W / 36.250°N 98.200°W / 36.250; -98.200 (Ames)
Avak	Alaska	12	< 95	71°15′N 156°30′W / 71.250°N 156.500°W / 71.250; -156.500 (Avak)
Barringer	Arizona	1.19	0.049 ± 0.003	35°2′N 111°1′W / 35.033°N 111.017°W / 35.033; -111.017 (Barringer)
Beaverhead	Idaho, Montana	60	600	44°15′N 114°0′W / 44.250°N 114.000°W / 44.250; -114.000 (Beaverhead)
Calvin	Michigan	8.5	450 ± 10	41°50′N 85°57′W / 41.833°N 85.950°W / 41.833; -85.950 (Calvin)
Chesapeake Bay	Virginia	90	35.5 ± 0.3	37°17′N 76°1′W / 37.283°N 76.017°W / 37.283; -76.017 (Chesapeake Bay)
Cloud Creek	Wyoming	7	190 ± 30	43°7′N 106°45′W / 43.117°N 106.750°W / 43.117; -106.750 (Cloud Creek)
Crooked Creek	Missouri	7	320 ± 80	37°50′N 91°23′W / 37.833°N 91.383°W / 37.833; -91.383 (Crooked Creek)
Decaturville	Missouri	6	< 300	37°54′N 92°43′W / 37.900°N 92.717°W / 37.900; -92.717 (Decaturville)
Des Plaines	Illinois	8	< 280	42°3′N 87°52′W / 42.050°N 87.867°W / 42.050; -87.867 (Des Plaines)
Flynn Creek	Tennessee	3.8	360 ± 20	36°17′N 85°40′W / 36.283°N 85.667°W / 36.283; -85.667 (Flynn Creek)
Glasford	Illinois	4	< 430	40°36′N 89°47′W / 40.600°N 89.783°W / 40.600; -89.783 (Glasford)
Glover Bluff	Wisconsin	8	< 500	43°58′N 89°32′W / 43.967°N 89.533°W / 43.967; -89.533 (Glover Bluff)
Haviland	Kansas	0.015	< 0.001	37°35′N 99°10′W / 37.583°N 99.167°W / 37.583; -99.167 (Haviland)
Kentland	Indiana	13	< 97	40°45′N 87°24′W / 40.750°N 87.400°W / 40.750; -87.400 (Kentland)
Manson	Iowa	35	73.8 ± 0.3	42°35′N 94°33′W / 42.583°N 94.550°W / 42.583; -94.550 (Manson)
Marquez	Texas	12.7	58 ± 2	31°17′N 96°18′W / 31.283°N 96.300°W / 31.283; -96.300 (Marquez)
Middlesboro	Kentucky	6	< 300	36°37′N 83°44′W / 36.617°N 83.733°W / 36.617; -83.733 (Middlesboro)
Newporte	North Dakota	3.2	< 500	48°58′N 101°58′W / 48.967°N 101.967°W / 48.967; -101.967 (Newporte)
Odessa	Texas	0.168	< 0.050	31°45′N 102°29′W / 31.750°N 102.483°W / 31.750; -102.483 (Odessa)
Red Wing	North Dakota	9	200 ± 25	47°36′N 103°33′W / 47.600°N 103.550°W / 47.600; -103.550 (Red Wing)
Rock Elm	Wisconsin	6	< 505	44°43′N 92°14′W / 44.717°N 92.233°W / 44.717; -92.233 (Rock Elm)
Santa Fe	New Mexico	6-13	<1200	35°45′N 105°56′W / 35.750°N 105.933°W / 35.750; -105.933 (Santa Fe)
Serpent Mound	Ohio	8	< 320	39°2′N 83°24′W / 39.033°N 83.400°W / 39.033; -83.400 (Serpent Mound)
Sierra Madera	Texas	13	< 100	30°36′N 102°55′W / 30.600°N 102.917°W / 30.600; -102.917 (Sierra Madera)
Upheaval Dome	Utah	10	< 170	38°26′N 109°56′W / 38.433°N 109.933°W / 38.433; -109.933 (Upheaval Dome)
Wells Creek	Tennessee	12	200 ± 100	36°23′N 87°40′W / 36.383°N 87.667°W / 36.383; -87.667 (Wells Creek)
Wetumpka	Alabama	7.6	~83	32°31′N 86°10′W / 32.517°N 86.167°W / 32.517; -86.167 (Wetumpka)^[2]^[3]

Unconfirmed impact structures

The following craters are officially considered "unconfirmed" because they are not listed in the Earth Impact Database. Due to stringent requirements regarding evidence and peer-reviewed publication, newly discovered craters or those with difficulty collecting evidence generally are known for some time before becoming listed. However, entries on the unconfirmed list could still have an impact origin disproven.

Name	Location	Diameter (km)	Age (years)	Coordinates	Probability
Alamo bolide impact	Nevada	unknown	367 million
Bow City	Alberta	8 km	70 million	50°25′N 112°16′W / 50.417°N 112.267°W / 50.417; -112.267 (Bow City)
Corossol	Quebec	4 km	2.6 million	50°03′N 66°23′W / 50.050°N 66.383°W / 50.050; -66.383 (Corossol)
Decorah crater	Iowa	5.6	470 million	43°18′49.73″N 91°46′20.04″W / 43.3138139°N 91.7722333°W / 43.3138139; -91.7722333	2 (probable)^[4]^[5]
Gatun structure	Panama	2.7–3.0	20 million	09°06′N 79°47′W / 9.100°N 79.783°W / 9.100; -79.783 (Gatun structure)	2 (probable)^[6]
Pantasma	Nicaragua	10	1 million	13°22′N 85°57′W / 13.37°N 85.95°W / 13.37; -85.95 (Pantasma)	4 (not probable)^[6]
Jeptha Knob	Kentucky	4.3	425 million	38°11′N 85°07′W / 38.183°N 85.117°W / 38.183; -85.117 (Jeptha Knob)	2 (probable)^[6]
Panther Mountain	New York state	10	375 million	42°03′N 74°24′W / 42.050°N 74.400°W / 42.050; -74.400 (Panther Mountain)	2 (probable)^[6]
Snows Island	South Carolina	11	unknown	33°49′N 79°22′W / 33.817°N 79.367°W / 33.817; -79.367 (Snows Island)	2 (probable)^[6]
Toms Canyon	New Jersey	22	35 million	39°08′N 72°51′W / 39.133°N 72.850°W / 39.133; -72.850 (Toms Canyon)	2 (probable)^[6]
Victoria Island structure	California	5.5	37–49 million	37°53′24″N 121°32′05″W / 37.889925°N 121.534672°W / 37.889925; -121.534672 (Victoria Island structure)^[7]	2 (probable)^[6]
Weaubleau-Osceola	Missouri	15–20	325.0 ± 15.0 million	37°59′N 93°38′W / 37.983°N 93.633°W / 37.983; -93.633 (Weaubleau-Osceola)	2 (probable)^[6]
Brushy Creek Feature	Louisiana	2	11,000 - 30,000 years	30°46′05″N 90°44′06″W / 30.768°N 90.735°W / 30.768; -90.735 (Brushy Creek Feature)	2 (probable).^[8]^[9]^[10]

References

External links