Explore Island Mountain, California, with this interactive street and satellite map.
This page also offers TOPO MAPS — the official USGS topographic sheets — plus USGS aerial imagery, a labelled USNG grid overlay, a distance and bearing tool, and a GPS grid-reference readout. See How to Use This Map below.
This interactive map shows the street layout and satellite imagery for Island Mountain, California. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture. Drag the map to pan to any area of California or beyond.
Click ⛶ Fullscreen to expand the map to fill your screen. To return to the normal page view, press the Escape key, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).
TOPO MAPS — NEW. Click the green 🔍 Search Maps button below the map to open a second map with a Base map row offering three choices. OSM is the standard OpenStreetMap street map. Topo shows the official USGS topographic maps from The National Map — contours, hydrography, land cover and shaded relief, the same mapping used for hiking, hunting and back-country navigation in the Adirondacks, the Catskills and the Finger Lakes. Imagery shows USGS aerial photography, mostly 1-metre NAIP. The search box finds any US town, county or landmark by name, so you are not limited to Island Mountain.
Reading the map like a paper quad. Click Grid to overlay the U.S. National Grid (USNG), labelled along the edges exactly as a printed topographic sheet is — at normal zoom the squares are one kilometre across, so you can read a six-figure grid reference by eye and judge distance directly off the map. Click Measure, then tap two points, to get the distance between them together with the grid bearing in degrees and mils, the true bearing, and the magnetic bearing to set on a compass.
Click 📍 My position to take a single GPS reading from your device. It marks where you are and reports your position as a USNG grid reference as well as plain latitude and longitude — USNG being the format FEMA and US search and rescue teams work from — with a Copy position button so you can paste it straight into a text message. It takes one reading and stops, rather than tracking continuously, to conserve your battery. Note that map tiles need cell coverage, but a GPS reading does not — your coordinates stay correct even where the map itself cannot load.
| City | Island Mountain |
| State | California (CA) |
| County | Trinity County |
| Country | United States of America |
| Timezone | Pacific Time (America/Los_Angeles) |
| Latitude | 40.026261 |
| Longitude | -123.490301 |
| Population | 180 |
| Density | 2.0 /km² |
| Incorporated | N/A |
| ZIP Codes | 95595, 95519 |
| Area Code | 530 |
| County Seat | Weaverville |
Island Mountain emerges from the rugged, inland terrain as a solitary anchor point amidst a landscape defined by the relentless, winding path of the Eel River. It lies 52.9 miles southeast of Fortuna, CA (from Fortuna, CA: bearing 138°T), and is situated 43.5 miles north-northeast of Fort Bragg. Sunlight here possesses a heavy, amber quality, baking the dry grasses of the hillside until the stalks turn the color of straw and brittle parchment. Three miles to the east, the basin of Pine Flat creates a wide, level pause in the topography, while the proximity of Lower Lake provides a quiet, reflective stillness to the immediate environment. The air carries the scent of sun-warmed earth and dry timber, a stark reminder of the isolation inherent in this portion of the state where the vast Coast Ranges loom on the far horizon like a jagged, blue-gray memory of geologic upheaval.
History at Island Mountain is written in the silence of the earth and the traces of former industry that once relied upon the iron rails to pull wealth from the deep, timbered slopes. The local economy has long been a quiet negotiation with the land, shifting from the labor of extraction to a slower, more deliberate existence that mirrors the seasonal ebb of the nearby Charlton Creek Trib. Residents might occasionally seek the elevation of the Ben Duncan Mailbox Trail, a path that offers a vantage point over the rugged, broken country that guards the region from the frantic pace of more populated zones. Life in Island Mountain moves with the deliberate, unhurried gravity of the river, where the passage of a day is marked not by the chime of a clock, but by the lengthening shadows that climb the hillsides as the afternoon light wanes into a deep, cool violet.
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This page provides an embedded street and satellite map of Island Mountain, California. Coordinates: 40.026261, -123.490301. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
Detailed location data for Island Mountain includes the ZIP code (95595, 95519), telephone area code (530), county seat of Trinity County (Weaverville), and school district assignment.
Search Maps opens a second, independent map. It searches OpenStreetMap for any US town, county or landmark by name; offers USGS topographic maps and USGS aerial imagery as base layers; overlays a labelled U.S. National Grid (USNG) so the map can be read like a printed topographic quad; measures distance and grid, true and magnetic bearings between any two points; and takes a single GPS fix reporting your position as a USNG grid reference and as latitude and longitude. Map tiles require cell coverage, but a GPS position does not, so the coordinates remain correct even where the map cannot load.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | September 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Map layers | Google Maps; © OpenStreetMap contributors; USGS The National Map topographic and aerial imagery (public domain); magnetic declination from NOAA NCEI (World Magnetic Model) |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |