Skip to content

Thompson's Islands

Thompson's Islands from directly overhead

Thompson's Islands is a historic site in Texas, at a modelled elevation of 174 m. Mount Sharp stands 463 m to the northwest, 23 miles off. The nearest named place is Thompson's Island Homeplace, a historic site 0.1 miles away. Texas Hill Country Trail passes 1.4 miles off. 34 named summits stand within 25 miles.

What the record says

Built
1993
Material
aluminium

What to expect

Operated by
Texas Historical Commission

Official site

How to reach it

Coordinates29.86961, -97.92874

Overlooks nearby

Named places within 25 miles

Historic sites
Parks
  • Conway Park: 0.5 mi
  • Veteran's Park: 0.5 mi
  • Swift Memorial Park: 0.6 mi
  • Rio Vista Park: 0.7 mi
  • H.E.B Park: 0.8 mi
Peaks: 34
  • Trunk Hill: 5.6 mi
  • Coal Kiln Hill: 6.2 mi
  • Koeglar Hill: 7.0 mi
  • Nail Hill: 9.0 mi
  • Bading Hill: 9.2 mi
Museums: 26
Nature reserves: 24
Artworks: 13
Attractions: 8
Springs: 7
  • Weismuller Spring: 1.5 mi
  • San Marcos Springs: 1.7 mi
  • Blue Hole: 13.4 mi
  • Jacob's Well: 16.4 mi
  • Comal Springs: 16.6 mi
Gardens: 4
Cliffs: 3
  • Purgatory Creek Overlook: 3.5 mi
  • Canyon Lake Spillway Gorge: 15.2 mi
  • Chalk Bluff: 16.3 mi
Ghost towns: 3
Picnic sites: 2
Waterfalls: 1
  • Upper McKinney Falls: 24.9 mi

Summits around it

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

SummitBearingElevationDistance
Mount SharpNW463 m23.3 mi
Jack MountainNW451 m21.4 mi
Big Head MountainWNW450 m24.8 mi
Roundtree MountainNW449 m24.1 mi
Peach MountainNW429 m21.9 mi
Gainor MountainNNW429 m24.3 mi
Startz HillW428 m22.0 mi
Lone Woman MountainNW423 m17.8 mi

When to go

Light through the year

DateSunriseGolden hourSunset
March equinox07:3619:1219:44
June solstice06:3220:0120:36
September equinox07:2118:5819:30
December solstice07:2417:0117:37

Local time (America/Chicago).

Climate normals

Months averaging 50–80 °F: Sep–May.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °F515561687682858580706052
Precip in2.41.72.83.24.53.62.22.64.04.42.72.4

1991–2020 U.S. Climate Normals, NOAA NCEI — SAN Marcos, 2 mi away.

Where this comes from

Location and category confirmed against OpenStreetMap.

OpenStreetMapOfficial site

OpenStreetMap element node/12403589885

More historic sites in Texas

Day trips start here

Drive to it

Byway plans a real route around stops like this one.

Private beta · Free to join

Take the scenic way to Thompson's Islands.

Byway plans around your taste, mapped 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