Skip to content

Grand River Museum

Grand River Museum from directly overhead

Grand River Museum is a museum in South Dakota, at a modelled elevation of 784 m. White Butte stands 888 m to the west-southwest, 13 miles off. The nearest named place is Cowboy Riding a Dinosaur, a artwork less than a tenth of a mile away. 48 named places lie within 25 miles, 23 of them named summits.

The Grand River Museum in Lemmon has a large amount of actual dinosaur fossils from the northwestern part of South Dakota. Our exhibits feature Ranching, Dinosaur Fossils, Native American History, Hugh Glass and more.

What to expect

Official site

How to reach it

Coordinates45.93447, -102.16148

48 named places within 25 miles

Peaks: 23
  • Robbers Butte: 7.1 mi
  • Thunder Hawk Butte: 9.7 mi
  • Twin Buttes: 11.7 mi
  • Round Top: 11.9 mi
  • Spring Butte: 12.1 mi
Parks: 10
  • Lemmon City Park: 0.3 mi
  • Lemmon Petrified Wood Park: 0.4 mi
  • Boss Cowman Square: 0.5 mi
  • North Lemmon Park: 0.8 mi
  • North Lemmon Lake State Game Management Area: 5.4 mi
Museums: 2
  • Lemmon Petrified Wood Museum: 0.4 mi
  • Dakota Buttes Museum: 22.8 mi
Nature reserves: 2
Artworks: 1
  • Cowboy Riding a Dinosaur: 0.0 mi
Ghost towns: 1

Summits around it

The highest named summits within 25 miles of Grand River Museum. Elevation from each summit’s own record; bearing measured between the two coordinates.

SummitBearingElevationDistance
White ButteWSW 243°888 m12.8 mi
Castle ButteW 271°869 m17.5 mi
Long ButteNNW 342°854 m15.7 mi
Pearl ButteNW 312°850 m16.6 mi
Kid Rich ButteW 265°843 m21.9 mi
Taylor ButteNW 308°842 m24.9 mi
Pretty Rock ButteNE 50°838 m22.1 mi
Big ButteWNW 283°837 m19.2 mi

When to go

Light through the year

DateSunriseGolden hourSunset
March equinox06:5318:2219:01
June solstice04:5919:5720:44
September equinox06:3618:0918:48
December solstice07:2815:1716:07

Local time (America/Denver).

Climate normals

Months averaging 50–80 °F: May–Sep.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °F192233455666737162473322
Precip in0.30.50.81.72.83.02.72.11.51.50.60.4

1991–2020 U.S. Climate Normals, NOAA NCEI — Lemmon, under a mile away.

Where this comes from

Location and category confirmed against OpenStreetMap.

OpenStreetMapOfficial site

OpenStreetMap element way/649744691

More museums in South Dakota

Drive to it

Byway plans a real route around stops like this one.

Private beta · Free to join

Take the scenic way to Grand River Museum.

Byway plans around your taste, verified places, real weather and opening hours — then opens every leg in Google Maps with one tap.

Private beta · Free to join · No card · Invite when a spot opens