> ## Documentation Index
> Fetch the complete documentation index at: https://rendzo.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Elevation Profile

> View and analyze elevation data for your routes

The Elevation Profile displays altitude data for your selected routes, helping you visualize climbs, descents, and terrain difficulty.

## Viewing the Profile

The elevation profile appears at the bottom of the interface when you have a route selected. Toggle visibility with **View > Elevation Profile** or press `Cmd+P` (Mac) / `Ctrl+P` (Windows).

<Tip>
  Resize the elevation profile by dragging the separator between the map and the profile panel.
</Tip>

## Interactive Features

### Hover Information

Move your cursor over the elevation profile to see detailed statistics at any point:

* **Distance** from start
* **Elevation** at that point
* **Gradient** (slope percentage)
* Additional data if available (speed, heart rate, etc.)

A marker on the map shows the corresponding location.

### Selection

Drag to select a portion of the elevation profile:

* Statistics update to show only the selected section
* Start and end markers appear on the map
* Click anywhere on the profile to reset the selection

This is useful for analyzing specific climbs or segments.

### Zoom and Pan

* **Scroll** - Zoom in/out on the profile
* **Shift+Drag** - Pan left/right when zoomed

### Auto-Zoom

Enable auto-zoom to automatically zoom the map to the portion of the route currently visible in the elevation profile. This is useful when zoomed in on a specific section - the map will follow along as you pan through the profile.

## Coloring Options

Click the chart button <Icon icon="chart-column" iconType="solid" /> at the bottom-right of the profile to change how the elevation is colored:

### Slope

Colors the profile by gradient steepness:

* **Green** - Flat or gentle grades
* **Yellow** - Moderate climbs
* **Orange** - Steep sections
* **Red** - Very steep grades

### Surface

Colors the profile by road/trail surface type (requires [surface data](/docs/tools/elevation-surface#surface-data)):

* **Gray** - Paved surfaces (asphalt, concrete, paving stones)
* **Yellow** - Gravel and loose surfaces (gravel, compacted, dirt, fine gravel)
* **Tan** - Rocky surfaces (cobblestone, rock, stone)
* **Brown** - Natural unpaved (earth, mud, ground, clay)
* **Green** - Grass and grass pavers

### Category

Colors by road type from OpenStreetMap:

* Major roads
* Minor roads
* Paths and trails
* Cycleways

<Note>
  Surface and category coloring are only available for routes created with Rendzo that have surface data applied.
</Note>

## Additional Data

If your route includes additional sensor data, you can overlay it on the elevation profile:

* **Speed** - Velocity over the route
* **Heart Rate** - HR data from fitness devices
* **Cadence** - Pedaling or step cadence
* **Temperature** - Ambient temperature readings
* **Power** - Cycling power meter data

Select which data to display using the chart options button.

## Statistics Panel

Below the elevation profile, key statistics are displayed:

* **Distance** - Total route length
* **Elevation Gain** <Icon icon="arrow-trend-up" iconType="solid" /> - Cumulative climbing
* **Elevation Loss** <Icon icon="arrow-trend-down" iconType="solid" /> - Cumulative descending
* **Max Elevation** - Highest point
* **Min Elevation** - Lowest point

When a section is selected, statistics update to reflect only that portion.

## Waypoints on Profile

When [waypoints](/docs/tools/waypoints) are present in your route, they can be displayed on the elevation profile as markers. This helps visualize where points of interest fall along the route's elevation.

Toggle waypoint display using the waypoints button in the profile toolbar. Hover over a waypoint marker to see its name and details.

## Working with Multiple Selections

When multiple tracks or files are selected, the elevation profile shows all routes:

* Each route appears in its own color
* Statistics show combined totals
* Hover to see data for individual routes

<Tip>
  Use the elevation profile with the [Crop & Split](/docs/tools/crop-split) tool to precisely select sections by dragging on the profile.
</Tip>