The Old Forge plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
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68° on Nov. 12, 2020, the hottest reading for this week of the year since 1931. Next is 66° in 2012.
Old Forge’s center stands about 1,890 ft above sea level. Within three miles the land runs from 1,700 ft to 2,350 ft, a difference of 650 ft: hilly country. The highest named summit within 15 miles is Seventh Lake Mountain, about 2,910 ft, 11 miles east.
Under the town center the state geologic map shows Biotite and/or hornblende granite gneiss, from the Mesoproterozoic, 1 to 1.6 billion years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 20×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 9 mi of the line.
Metasedimentary, gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 5 mi of the line.
Metasedimentary, migmatite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 4 mi of the line.
Charnockite, gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 3 mi of the line.
Charnockite, gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 2 mi of the line.
Marble. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 0.5 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.
A raindrop that lands in Old Forge reaches Lake Ontario by way of First Lake, the Middle Branch Moose, the Moose and the Black River: about 110 river miles. From the lake it goes down the St. Lawrence to the Atlantic.
Lake on the way: First Lake.
75 miles of the trip are on the Black River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Old Forge; river miles along the main stem, rounded.
Old Forge has a warm-summer humid continental climate. Summer afternoons average 79° in July; winter nights fall to about 7° in January. A normal year brings about 154 inches of snow; with the rain, that comes to about 50 inches of water.
Normals 1991–2020 and records since 1931 at Big Moose 3 SE, 9 miles north-northeast. NOAA, through RCC-ACIS.
