You must go below the maximum to get the material. Many materials also have a deeper level below which they are more common.
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<thead>
<tr>
<th>Maximum</th> <th>Common</th> <th></th>
</tr>
</thead>
<tbody>
<tr>
<td>-256</td> <td></td> <td>Lava</td>
</tr>
</tbody>
Only a few materials stop occurring at lower depths (see "Minimum" column).
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Currently-known mined resource elevations:<br/>
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Bring food (and wood to make torches and other tools) to survive deep underground.<br/>
Set home and go home using the inventory menu. The house button with the <span style="font-weight:bold; color:darkred">red</span>
arrow sets home. If you die you can always click the house button with the <span style="font-weight:bold; color:darkgreen">green</span> arrow to go back home.<br/>
You can set additional homes by typing: /sethome, or /sethome2; then return by typing /home, or /home2.
<h2>Protecting Your Builds and Items</h2>
<ul>
<li>Protector blocks protect your area from other players</li>