Body Elements

The mode dial has a central lock button, and rotates freely through 360 degrees. The SCN position consolidates the various scene modes, and there's a single user-programmable position (C).

Underneath it is a large power switch of the type now found across most of the EOS range.
Here's a closer look at the 60D's AF area button. It's placed in the same position as the 7D and 5D Mark III's 'M.Fn.' buttons, but isn't customisable.

Pressing it repeatedly cycles through ever-expanding groups of AF points, so you can quickly switch from a single point, through a grouping of points around it, to using all 19 points with automatic selection by the camera.
There's an IR remote control receiver on the front of the handgrip, where it's reasonably accessible when working from behind the camera. The recessed lamp beside it is the visual indicator for the self-timer.
The 70D gains Canon's usual live view / movie controller. With the switch in the stills position (as shown), pressing the central button engages and disengages live view.

Flick the switch into the movie position and the camera enters movie mode live view, with the corresponding controls and 16:9 preview display. The Start/Stop button then starts and stops recording.
The 70D has an 8-way multi-controller within its rear dial, that's used for moving the autofocus point, navigating menus, and scrolling around images in playback etc. In addition to the usual left/right and up/down keys, the diagonals are also active.
The built-in flash is released by a button on the side of the lens throat, and pops up high above the lens axis. It has a guide number of 12m at ISO 100, and offers coverage for lenses as wide as 17mm.

It can also act as a commander unit for wireless-controllable external Speedlites.
As usual there's a hotshoe on top of the pentaprism, that accepts Canon's EX series flash units from the tiny Speedlite 90EX to the top-of-the-range Speedlite 600EX-RT.

On either side of it, and behind the housing for the pop-up flash, you can see the paired grilles for the built-in stereo microphones.
The 70D's card slot is positioned on the side of the handgrip, behind a sprung plastic cover. It accepts a single SD / SDHC / SHXC card.
The camera's various connectors are placed under rubber flaps on the side of the body. On the left are sockets for the RS-60E3 remote release and a stereo microphone.
Beside them under a separate cover are the USB and HDMI ports.

The 70D is CEC-compatible, and supports control of playback using the remotes of most modern TVs when connected via HDMI.
Meanwhile the speaker for sound during movie playback can be found on the side of the camera, above the covers for the connectors, hidden behind an artfully-designed grid.
The 70D uses the same 7.2V, 1800mAh LP-E6 battery as the 60D and 6D. As with most Canon SLRs, it's housed in the handgrip. The compartment is sufficiently far from the tripod socket for the battery to be changeable on many heads.
The tripod socket is positioned in-line with the lens axis, surrounded by a ridged area for a quick release plate to grip.