Here are some options:
1. Online Resources:
* Google Earth/Maps: This is the easiest and most accessible option. Simply search for your location and it will show you the altitude. However, the accuracy can vary depending on the terrain.
* Elevation Finders: Many websites and apps specifically designed to find elevation are available. These often use more precise data sources and offer more detailed information.
* USGS TopoView: This website provides topographic maps with elevation data for the United States.
2. GPS Devices:
* Handheld GPS units: Most modern GPS receivers provide altitude readings. However, the accuracy depends on the quality of the unit and the satellite signal.
* Smartphones with GPS: Similar to handheld GPS units, most smartphones with GPS capabilities can also display altitude.
3. Specialized Tools:
* Altimeters: These instruments measure atmospheric pressure and convert it to altitude. They are commonly used in aviation and mountaineering.
* Barometric Altimeters: These are a more accurate version of altimeters and are often used by surveyors and other professionals.
4. Elevation Data Sources:
* DEM (Digital Elevation Model): This is a digital representation of the Earth's surface, showing elevation values for every point. You can access DEM data from government agencies or commercial providers.
* LiDAR (Light Detection and Ranging): This technology uses laser beams to measure distances and create detailed 3D models of the terrain, including elevation data.
Important Considerations:
* Accuracy: The accuracy of altitude readings varies depending on the method used. Online resources and smartphone GPS can be less accurate, while specialized tools and elevation data sources provide more precise measurements.
* Local Terrain: Elevation can vary greatly within a small area, especially in mountainous regions.
* Real-time vs. Historical Data: Online resources and GPS devices provide real-time altitude readings, while elevation data sources may provide historical data.
Ultimately, the best way to find the altitude of a certain place on Earth depends on your needs and the resources available to you.