user66015: This page https://store.arduino.cc/usa/mega-2560-r3 contains the following image under the Documentation section.

It shows digital pins 10 to 13 with labels SS, MOSI, MISO, and SCK. However, this page says that those are at pins 50 to 53 https://www.arduino.cc/en/reference/SPI.

Which page is correct?

user31668: The image is incorrect, unfortunately.
The SPI pins are below:
PB0 - #SS
PB1 - SCK
PB2 - MOSI
PB3 - MISO       





66015: <p>This page <a href="https://store.arduino.cc/usa/mega-2560-r3" rel="nofollow noreferrer">https://store.arduino.cc/usa/mega-2560-r3</a> contains the following image under the Documentation section.</p>
<p><a href="https://i.stack.imgur.com/RxKaD.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RxKaD.png" alt="pic from mega 2560 documentation" /></a></p>
<p>It shows digital pins 10 to 13 with labels SS, MOSI, MISO, and SCK. However, this page says that those are at pins 50 to 53 <a href="https://www.arduino.cc/en/reference/SPI" rel="nofollow noreferrer">https://www.arduino.cc/en/reference/SPI</a>.</p>
<p><a href="https://i.stack.imgur.com/Y85w8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Y85w8.png" alt="table from SPI page" /></a></p>
<p>Which page is correct?</p>
 31668: <p>The image is incorrect, unfortunately.</p>
<p>The SPI pins are below:</p>
<pre><code>PB0 - #SS
PB1 - SCK
PB2 - MOSI
PB3 - MISO       
</code></pre>
<p><a href="https://i.stack.imgur.com/6Ic3N.png" rel="noreferrer"><img src="https://i.stack.imgur.com/6Ic3N.png" alt="enter image description here" /></a></p>
<p><a href="https://i.stack.imgur.com/jNsas.png" rel="noreferrer"><img src="https://i.stack.imgur.com/jNsas.png" alt="enter image description here" /></a></p>
<p><a href="https://i.stack.imgur.com/BUydA.png" rel="noreferrer"><img src="https://i.stack.imgur.com/BUydA.png" alt="enter image description here" /></a></p>
