Walnut Grove Estates, Ohio

The same ground, surveyed 93 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1902 1995

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.

• 1902 USGS Westerville quadrangle1:62500
• 1904 USGS Westerville quadrangle1:62500
• 1904 USGS Westerville quadrangle1:62500
• 1950 USGS Marion quadrangle1:250000
• 1955 USGS Galena quadrangle1:24000
• 1962 USGS Marion quadrangle1:250000
• 1964 USGS Galena quadrangle1:24000
• 1964 USGS Galena quadrangle1:24000
• 1964 USGS Galena quadrangle1:24000
• 1964 USGS Galena quadrangle1:24000
• 1966 USGS Marion quadrangle1:250000
• 1966 USGS Marion quadrangle1:250000
• 1966 USGS Marion quadrangle1:250000
• 1995 USGS Galena quadrangle1:24000

Museums hold 2,533 specimens collected within 10 miles of Walnut Grove Estates between 1850 and 1975: 2,394 Animalia, 69 Plantae, 68 Fungi, 1 Unrecorded, 1 Chromista. 12 distinct Species records are shown. Collected by A C Whitney, A S BRADSHAW, A. P. Morgan 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
	unnamed	1896	F. L. Stevens	Flint.
	Dothidea Fr., 1818	1896	F.L. Stevens
	Hypoxylon atropunctatum (Schwein.) Cooke	1896	A. P. Morgan	Preston
	Ectopistes migratorius (Linnaeus, 1766)	1850	Kugel, B. (Burt)	near Selma, Ohio, USA
	Podiceps auritus (Linnaeus, 1758)	1860	Ricke, A. S.	Carlisle, Ohio, USA
	Centronyx henslowii (Audubon, 1829)	1872	not recorded	Licking Reservoir, Ohio, USA
	Ophioglossum vulgatum L.	1873	Hussey, J.
	Bonasa umbellus (Linnaeus, 1766)	1874	not recorded	Sugar Grove, Ohio, USA
	Branta bernicla hrota (O.F.Müller, 1776)	1874	not recorded	Lake Erie, Ohio, USA
	Melospiza lincolnii (Audubon, 1834)	1874	Wheaton, J. M. (John Maynard)	Licking Reservoir, Ohio, USA
	Phalaropus lobatus (Linnaeus, 1758)	1874	Jasper, T. (Theodore)	Columbus, Scioto R., Ohio, USA
	Tympanuchus americanus (Reichenbach, 1852)	1874	not recorded	Monroeville, Ohio, USA

All 2,533 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 2 workings within 5 miles of Walnut Grove Estates: 1 past producer, 1 producer. 1 still produces. What was taken out: Clay. 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 Delaware County

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

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

This settlement is recorded in the Geographic Names Information System as feature 2771368. 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.