Dlworth, Ohio

The same ground, surveyed 87 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1907 1994

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

• 1907 USGS Kinsman quadrangle1:62500
• 1907 USGS Kinsman quadrangle1:62500
• 1956 USGS Cleveland quadrangle1:250000
• 1956 USGS Cleveland quadrangle1:250000
• 1956 USGS Cleveland quadrangle1:250000
• 1961 USGS Gustavus quadrangle1:24000
• 1961 USGS Gustavus quadrangle1:24000
• 1961 USGS Gustavus quadrangle1:24000
• 1962 USGS Cleveland quadrangle1:250000
• 1986 USGS Youngstown quadrangle1:100000
• 1986 USGS Youngstown quadrangle1:100000
• 1994 USGS Gustavus quadrangle1:24000

Museums hold 90 specimens collected within 10 miles of Dlworth between 1893 and 1973: 80 Animalia, 9 Plantae, 1 Fungi. 12 distinct Species records are shown. Collected by Brown, Fred, Chamberlin, Earl, Conant, R. (Roger) & Murphy, M. K. and others. Each is a physical object with a catalogue number, and each entry opens the museum's record. This is what was collected and kept, not a survey of what lives here - nothing can be concluded from a species being absent.

Image	Species	Year	Collected by	Where, as recorded
	Gymnoconia peckiana (Howe) Trotter	1910	E.B.	Johnston
	Saxifraga virginiensis Michx.	1893	Chamberlin, Earl	Cortland
	Erigeron annuus (L.) Pers.	1901	I. E. Diehl	Oakfield
	Erigeron strigosus var. strigosus	1901	I. E. Diehl	Oakfield
	Diadophis punctatus (Linnaeus, 1766)	1917	not recorded	Kinsman
	Ameiurus nebulosus (Lesueur, 1819)	1929	MB Trautman & asst	Pymatuming Creek, trib of Shenango River, Southern Vernon Twp
	Esox americanus vermiculatus Lesueur, 1846	1929	MB Trautman & asst	Pymatuming Creek, trib of Shenango River, Southern Vernon Twp
	Esox vermiculatus Lesueur, 1846	1929	Trautman, M. B. (Milton Bernard)	Pymatuning Creek, within Ex south Vernon township, near Orangeville, Vernon township
	Ictalurus melas (Linnaeus, 1758)	1929	Trautman, M. B. (Milton Bernard)	Pymatuning Creek, at Kinsman, ~0.1 mi S of Kinsman, Kinsman township
	Ictalurus nebulosus (Lesueur, 1819)	1929	Trautman, M. B. (Milton Bernard)	Pymatuning Creek, within Ex south Vernon township, near Orangeville, Vernon township
	Lepomis Rafinesque, 1819	1929	MB Trautman & asst	Pymatuming Creek, trib of Shenango River, Southern Vernon Twp
	Lepomis gibbosus (Linnaeus, 1758)	1929	Trautman, M. B. (Milton Bernard)	Pymatuning Creek, within Ex south Vernon township, near Orangeville, Vernon township

All 90 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 2 workings within 5 miles of Dlworth: 1 past producer, 1 producer. 1 still produces. What was taken out: Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Trumbull County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

This settlement is recorded in the Geographic Names Information System as feature 1064543. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Specimens. Global Biodiversity Information Facility (GBIF), https://www.gbif.org/. Only records licensed CC0 or CC BY are used. Records licensed CC BY-NC are excluded because this site carries advertising. Images are checked individually and any whose licence is non-commercial, no-derivatives or unreadable is refused.

Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.