Volcano · Kikai Caldera · Kagoshima Prefecture

Mount Iō

704 m2,310 ft

Isolation: 45 km
Tonight: 23°CPartly cloudy · Wind 49 km/h SE

Mount Iō is a 704 m (2,310 ft) volcano in the Kikai Caldera, Kagoshima Prefecture, Japan.

All facts

Elevation: 704 m · 2,310 ft
Prominence: 704 m · 2,310 ft
Nearest higher peak: Mount Kaimon (924 m)
Range: Kikai Caldera
Region: Kagoshima Prefecture, Japan
Coordinates: 30.7929° N, 130.3051° E

Open the 3D view

3D map

Mount Iō 3D map

Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 6.8 × 6.8 km

Surface

Vertical scale

Topographic map

Mount Iō terrain and contours

25 m contours from the Copernicus GLO-30 terrain model. Click two points on the map to draw your own cross-section.Tap two points on the map to draw your own cross-section.

Index contours every 125 mShowing west → east through the summit

Mount Iō elevation profile

West → east through the summit

Hover the profile to read elevation and distance.Tap or drag along the profile to read elevation and distance.

Weather

Mount Iō weather

Today · Partly cloudy · 23 / 23°C (73 / 73°F) · Wind 49 km/h SE

Mount Iō forecast for the summit, about 704 m. Summit vs base: the Base line is for about -2 m.

Today23°23°–49 km/h SEBase 27 / 27°
Sun23°23°0.1 mm44 km/h SBase 27 / 27°
Mon21°23°0.7 mm54 km/h NWBase 25 / 27°
Tue17°20°–46 km/h NWBase 21 / 24°
Wed16°18°–23 km/h NEBase 20 / 22°
Thu19°20°3.7 mm21 km/h SEBase 23 / 24°
Fri18°18°5.3 mm15 km/h NWBase 23 / 23°
Sat17°20°0.5 mm32 km/h NBase 22 / 24°
Sun17°19°4.6 mm18 km/h NEBase 22 / 23°
Mon17°19°0.3 mm44 km/h NBase 21 / 23°

Forecast data: MET Norway, CC BY 4.0; daily low and high, precipitation total and strongest wind from the hourly data, model run Oct 23, 23:18 UTC.

Camping & parking

Camping & parking near Mount Iō

Campsites, parking, trailheads and mountain huts mapped in OpenStreetMap around Mount Iō, nearest first, by straight-line distance. Check access, fees and permits locally.

Nearest parking
1.6 km N
Directions Map
Nearest campsite
冒険ランドいおうじま
2.0 km WSW
Directions Map

All mapped places 2

Place	Distance
Parking	1.6 km N
冒険ランドいおうじまCampsite	2.0 km WSW

Slope

Share of the 6.8 × 6.8 km view by steepness, from the 30 m model.

Mostly gentle: 84% of the view is under 15°.

Gentle, 0–15°

83.9%

Moderate, 15–30°

6.8%

Steep, 30–45°

7.8%

Cliffs, 45° and over

1.5%

Steeper than 30°: 9.3% of the 46 km² view
Relief in view: 689 m low point -2 m

Land cover

ESA WorldCover 10 m classification of the same area.

Water 77.2%Trees 16.1%Bare rock / sparse 4.4%Grassland 2.1%

Snow & ice means glaciers and year-round snow (a yearly average), not today’s snow cover.

Where it sits

Where Mount Iō sits

Ranked in 1

#49 Volcanoes in Japan

Nearby

Nearby places

More 1

SakurajimaPeak · 1,117 m94 km NNE

Downloads

Mount Iō downloads: topographic map, heightmap, STL 3D model and DEM

Free files made in your browser from this page's terrain data. No sign-up; credit the sources below.

Print & wall

JPGMount Iō satellite image (JPEG)Sentinel-2 true-colour image of the same area, taken 2025-08-03.

3D printing & 3D apps

GIS & GPS

</>Embed this mapPaste this into your site to show the interactive 3D terrain, with a credit link back here.

<iframe src="https://topolu.com/embed/mount-io-kagoshima-prefecture" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Mount Iō"></iframe>
<p><a href="https://topolu.com/mount-io-kagoshima-prefecture" rel="nofollow">Topolu</a></p>

Free to use with credit: see the data sources

Accuracy

How accurate is this?

17 m low This 3D map reads 687 m at the summit; the official height is 704 m.

Why: a 30 m terrain model averages each cell, so a sharp summit gets rounded off.

Source	Summit	Difference
Official height (Wikidata)	704 m	—
Copernicus GLO-30 (used on this page)	687 m	-17 m
Copernicus GLO-90	681 m	-23 m

Data sources

Terrain: Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
Imagery: Contains modified Copernicus Sentinel data 2025 (scene 2025-08-03)
Land cover: © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
Facts: Wikidata (CC0)
Wildlife: iNaturalist community observations, counts only
Accuracy comparison, Panorama: Includes Copernicus WorldDEM-90 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
Forecast: Weather forecast from MET Norway (CC BY 4.0)
Sources: Wikidata · OpenStreetMap · GeoNames · Wikipedia

Mount Iō

West → east through the summit

Nearest parking

Nearest campsite

Data sources